All Tecnifibre strings

Razor Soft is a monofilament with round shape and composition based on copolyester. The average static stiffness is 1.15 kg/mm.

Spin Tension holding Control

NRG2 is a multifilament/synthetic with round shape and composition based on polyamide. The average static stiffness is 0.62 kg/mm.

Resilience peak Elasticity Stability