This rubber, in brown color is made from 100% natural latex by gravity extrusion , to maintain constant the diameter and so the mechanical properties of the band. Ideal for guns with 2 or 3 bands to combine an easy charge to an extremely high performance. This rubber is 100% Made in Italy. Size Chart 46cm – 75cm gun 49cm – 85cm gun 52cm – 95cm gun 56cm – 105cm gun 60cm – 115cm gun