Constructed with pure latex and screws, these rubber bands are designed for use with O16mm spearguns. They have been optimized for each length, providing exceptional power and speed to your spear. Easily attach the competition elastic power band to your spear gun using the threaded ends and Cressi&';s Jointed wishbone and threaded muzzle. With their strength and precision, these rubber bands are sure to deliver your shaft with maximum velocity. Pairs of pure latex rubbers with screws Available in O16mm Optimized for each length spear gun Competition Elastic power band is threaded on each end for attachment with Cressi&';s Jointed wishbone and threaded muzzle Strong and powerful, these bands will deliver your shaft with maximum speed Sizes: 16 cm - Gun 55/60 cm18.5 cm - Gun 75 cm20 cm - Gun 80 cm22 cm - Gun 85/90 cm25.5 cm - Gun 90/100 cm27.5 cm - Gun 105/110 cm