Arborist-specific: Aerodynamic design helps increase the range of throw. Features & Specs: MPN: 0898320BO Moving action of no. 8 shot filler helps prevent hang-ups in tree branches. Lead shot is contained in a latex pouch for environmental protection. 7/8 inch nickel-plated ring for attachment to throw line, box-stitched for durability. Weight is screen printed on bag for easy identification.