The Gamma String Tension Tester™ lets you know when it's time to restring by measuring the relative tension loss of strings over time

maximum visibility

designed ultimate comfort and protection

the Penn Coach Practice 24 Cans takes a step toward smashing plastic waste

Babolat ElastoCross String Savers Grip Size_4L - 4 1/2" The Gamma String Tension Tester™If you're a tennis player who breaks strings often, then use the Babolat Elastocross String Saver to help your strings last longer. This Teflon device easily secures under the string to protect from friction and wear, increasing longevity up to 50%. Whether you prefer natural gut or synthetic, the Babolat Elastocross String Saver preserves the tension and playability of your strings. Great for gut or synthetic strings.