The Matthews 30 lb. Boa Bag Counterweight Kit features two 5 lb Boa Bags and two 10 lb Boa Bags. These unique nylon shot bags are designed with two sacks conjoined by a wide, durable strap. These 5- and 10-pound weights work best with C-stands and lightstands, offering a hanging or wrapping style around poles or hooks. The conjoining strap features a sewn-in rubberized patch to ensure a slip-free experience.