RPM Soft 17G X5 this string upgrades from Enduro

this string upgrades from Enduro Pro to Luxilon Adrenaline

ۢ The training tyre

- Sealed cartridge bearings- No-Splash Refill Port: Brand new patent-pending refill port shields splash back

3 offset hook-and-loop straps

Stiffness Index: 6

RPM Soft 17G X5 this string upgrades from EnduroBabolat's RPM Soft is the latest addition to their RPM range and it belongs in a class on its own. Created to replace the Babolat Origin string, RPM Soft is a very unique monofilament that delivers the playability of a high end multifilament but with more durability thrown in. The string is constructed from a uniquely flexible polyamide core (which gives you the playability) but also has two co polyamide outer layers for that added durability and