Skip to footer
Shop All Gamma

Gamma AMP Sapphire 17/1.23 String

5.0
1 Review
Shop All Gamma

Gamma AMP Sapphire 17/1.23 String

5.0
1 Review
$10.99
In Stock: Yes

We will match or beat any posted overall price advertised in-store or online on in stock items.

Surgical control. 100% Biodegradable 

Introducing Gamma Sapphire! Crafted from 100% biodegradable material, this co-poly features a patent-pending technology that accelerates the decomposition process. It also delivers impressive control on full swings, making it easier to maximize stroke speed when loading the ball with pace and spin. According to our TW playtesters, the muted feel helps to minimize harsh impact vibrations. The fact that it lightens the load on the planet is a nice bonus. Did we mention the control?



  • Gauge: 17/1.23mm
  • Length: 40ft/12.2m
  • Composition: Co-polyester monofilament (made with additives to accelerate decomposition)
  • Color: Blue

Customer Reviews

5.0 out of 5
1 Customer Review
5 out of 5 Stars
Would Recommend
Delectable stringGamma's Sapphire string certainly lives up to the precious gem it's named after. It's sharp in terms of its control-oriented feel, and feels crisp without feeling harsh at all. The spin factor and control are sublime and the string feels effortless more often than not.
Nike Spring Apparel & Shoes
Nike Spring Apparel & Shoes Shop Now
Tecnifibre String & Racquet Promo
Tecnifibre String & Racquet Promo Shop Now
Wilson Trade-in and Save Big!
Wilson Trade-in and Save Big! Shop Now
adidas Legacy Collection
adidas Legacy Collection Shop Now
K-Swiss Hypercourt Pinnacle
K-Swiss Hypercourt Pinnacle Shop Now
Mach-10: The Future of String Technology
Mach-10: The Future of String Technology Shop Now
New In! HEAD Radical Racquets
New In! HEAD Radical Racquets Shop Now
New Women's Apparel
New Women's Apparel Shop Now
One lucky winner will train like a champion
One lucky winner will train like a champion Learn More
ON Roger Advantage Pro Shoes
ON Roger Advantage Pro Shoes Shop Now
NEW Gamma Momentum Stringing Machines
NEW Gamma Momentum Stringing Machines Shop Now