The original Beaver invention designed to increase diving enjoyment, this Heavy Duty Polyester Mesh Pouch weighs in at 2Kg, containing un-graphited lead shot, extreme comfort & flexibility. Perfect for use with most types of B.C.D.'s with integrated weight systems, Tech Weight Harnesses, and Padded Pouch style weight belts. This innovative product has often been copied but never beaten, insist on Beaver Weight pouches for peace of mind with your buoyancy.