The textured surface offers optimum ball control

Recommended stringing tension up to 55 lbs

preventing blisters

USTA QuickStart Tennis: 36 Foot Red Level

SpenCore™ layer cushions impact

Ashaway Crossfire ZX Shoe Type_Stability/Support The textured surface offers optimumAshaway Crossfire ZX tennis string is perfect for chronic string breakers looking for a hybrid string combination with superior soft power, outstanding durability and maximum potential for spin. This package features the combination of Kevlar+ Plus main strings and MonoGut ZX Pro cross strings. Top spin players will get the most out of this combination. PTFE filaments in main string produce softer feel to complement the playability of powerful Aramid