XS Scuba Tank Cam Strap w/ SS BuckleThe XS Scuba cam strap with separating stainless steel buckle is the easiest, most secure way to attach your cylinder to your BC. Features: Standard length, as found on SeaBlazer, fits most BCs that have standard backpacks Standard length 31. 25" (793mm) Shorter length, as found on Phantom, fits most BCs without hard packs Phantom BC length 25. 75" (653mm) Both versions fit 6. 9 (175 mm), 7. 25 (184 mm) & 8. 0 (203 mm) diameter cylinders Cam buckle