SpearPro Speargun Bands are crafted from the freshest rubber and built in California by salty spearos. As the largest distributor of Primeline Rubber spearfishing bands, Spearpro provides the widest variety of rubber color, length, and wishbone options available in the USA. Perfected by professional spearfisherman, the adjustable loops and dyneema wishbone are ready for any and all spearguns with fin or mini-fin shafts. Guaranteed the freshest bands on the market. Note: Outside diameter tolerance +/- 0.02 inches