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Cobra King F9 SpeedBack One Length Iron Set Golf Clubs


Certified Preowned
King F9 SpeedBack One Length
Player Type
Clubs Type
6-PW, AW Iron Set
Right Hand
Lie Angle
Aldila Rogue Pro One Length 65 Graphite
Has Headcover
Has Tool
Shaft Material
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The King F9 SpeedBack One Length irons are a combination of tungsten weighting and innovative shaping to deliver the most powerful and stable COBRA iron. Also features The One Length ™ Configuration that’s engineered with a matching 7-iron length, lie and swing weight specifications. This configuration simplifies your game by reducing the variability in your swing for increased confidence and consistency. These irons are forged E9 Pwrshell™ Face Technology that offers a thicker face design that’ll expand the sweet zone for a higher launch and faster ball speeds across a larger area on the face.

Certified Preowned

Buying pre-owned clubs is a great way get clubs in your bag without having to pay the full price of a brand new club. At GlobalGolf, we bring peace of mind to the buying process by offering a unique club condition, GlobalGolf Certified Preowned.

Each Certified Preowned club goes through a certification process by our trained professionals. The certification process includes:
  • Complete 6 - Point Inspection Process
  • Thorough Cleaning
  • Twelve - Month Limited Warranty
  • Thorough Cleaning
  • Visual Inspection
GlobalGolf Certified Preowned 6 - Point Inspection Process covers the clubs from grip to sole, ensuring that the club(s) you purchase have been properly maintained and are in the best possible condition before making their way into your bag. The Twelve-Month Limited Warranty protects your club against all manufacturing defects in materials and workmanship. If your club is found to have a factory defect, our commitment is to promptly replace it or issue a credit for the full amount. No questions asked.

Learn More About Certified Preowned Here.


  • One Length ™ Configuration
  • Progressive Shaft Weighting
  • 3 different KBS shaft weights (KBS Tour 80, 90 and Wedge)
  • Wider soles in the 4-6 irons lower the club’s center of gravity and add bounce
  • Cobra Connect that features electronically enabled grips that work in conjunction with the Arccos Caddie app, allowing users to track their stats and improve their game


Displaying 1 out of 1 Questions.

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are these irons forged
asked by William C. on 1/21/2020
The club face is forged but not the entire club.
Rudi Fann, PGA Professional
answered on 1/22/2020

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Customer Reviews

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Very long!!!
By Fraz Nino P. on 3/29/2019
28 out of 29 people found this review helpful.
Handicap: 6-10  Plays Golf: I play monthly  Dexterity: Right Hand

Loved my F9 irons! I'm 11 handciap. Quick off the face. Very long compared to my Psi. Easier to hit too. I gained more or less 10 yards per club.It's easier to adjust on the one length than expected. Highly recommended for those who want to improve their iron shots and increase distance.

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Consistency Across the board
By Roland C. on 5/2/2019
21 out of 24 people found this review helpful.
Handicap: 11-15  Plays Golf: I play weekly  Dexterity: Right Hand

Absolutely love these irons. So consistent and easy to hit. Love the one setup across every iron. Shots are a lot easier now and distances were not hurt at all by the one length concept. Tried this through the Global Golf U Try program and did not anticipate keeping them but fell in love so in my bag they stayed!

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Great feel and long
By james s on 7/3/2019
11 out of 13 people found this review helpful.
Handicap: 11-15  Plays Golf: I play weekly  Dexterity: Left Hand

I just started playing again after about 12 years and was fascinated by the one length clubs. I purchased them 1* weak, 3/4 inch long, and 2* upright. They feel and sound great as well. All my clubs have great height to them when hit. One negative I’ve seen about the one length is height, but I do not have a problem with that what so ever. If you are fascinated by one lengths like I was, don’t hesitate and just buy them.

You will not be disappointed!

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F9 One
By Giulio on 6/13/2020
7 out of 8 people found this review helpful.
Handicap: 6-10  Plays Golf: I play weekly  Dexterity: Right Hand

I started on the one length journey in 2019 and was one of the first to own a pair of F9 One Lengths in Alberta. This first 10-15 rounds I was a little worried, score had not changed still high 80&aposs sometime 90&aposs.. Wedge shots were hard, SW and GP just could not make it work. After a day of youtube watching and working with the Cobra rep things changed, I had to buy into the same shot, the same stance and keep those lines straight.. Now after 50 rounds my last 10 are below 82 and for the first time I shot a 75,77,74,78,80 all within the first 3 weeks of golf. I will never go back, my wedge game is very strong, my mid irons are great and the 3H one length is money!! So par 5 are par of birdies with a decent t-shot. I&aposm not a long hitter but these clubs gave me 10 yards more on every club!! Thanks Cobra!! Thanks for one lengths!! It changed my game. I&aposve since changed over 4 friends and they are starting to love them. Again just keep working the wedges, hit them like a 7 iron and you will be fine..

I&aposve played some real hard courses in the US over the last 10 months and have never hit over 90. My home course is a pretty hard course, most score high 80 or low 90. So when I&aposm hitting mid 70 now it just feels real good.. Also for putting look a EVNENROL it&aposs changed my putting by a least 4 -5 shots.

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By Saturn H on 4/8/2020
7 out of 8 people found this review helpful.

This is the first set of one-length graphite Irons I have ever had. Great feeling when holding the grip. Definitely faster swing speed because of a lighter weight.

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+ + Clear All i What is this? About UTry®
These are your UTry® selections. Only UTry® eligible products appear here. 2 product limit.

Our UTry® program gives you the opportunity to try out brand new products from the game's top brands for 14 days for only $25, or $100 for an iron set. That's right—you get a brand new, still-in-the-plastic club to try for two weeks for just $25.

You get to try it when, where, and how you want for two weeks before deciding if you want to buy it or not.

Want to test out two different brands, or two different configurations? No problem. UTry® lets you try out up to 2 products for $25 per product or 1 iron set for $100.

This isn't 30 minutes on the range with range balls or looking out of the Pro-Shop window. You can try the product on your time, when & where you want.

UTry® gives you the freedom to take Golf Clubs, GPS or Rangefinders to your course and to use at your pace! Use it as much as you like so you can really know what the product will do for your game before you invest in it.

If you don't love it, simply put it back in the box it came in, use the included prepaid return shipping label, and send it back to us. That's it.

If you do love it, that's awesome! You keep the product, we'll subtract the $25 trial fee off the final cost of the product, and we'll charge you the difference.

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