5/8(16mm) Super Premium Speargun Bands with Stainless Steel Inserts, Spectra Wishbones and Primeline Small I.D. Rubber (Select Length) Band Size: 5/8"(16mm) x (select your length); Rubber: Primeline Black Over Amber Core 5/8"(16mm) OD x 1/16"(1.5mm) ID Wishbone - Stainless Steel NTR Inserts with 1.9mm Spectra(R) Bridle Cord (Includes enough extra Spectra(R) for 1 rebuild) Compatibility: Spearguns with fin or mini-fin shafts and either open or closed band eyes Select a size for length compatibility recommendations here. Select a size for compatible speargun models here. (*Spearit is not affiliated with any of the manufacturers whose models are listed)