An apparatus to allow a user to practice throwing a sports object without the need for multiple throwing objects or a throwing partner is disclosed. The apparatus comprises a sack having an open end and a closed end, and a strap attached to the open end. The user may insert his hand, holding the sports object, into the open end of the of the sack and then strap the apparatus to his or her wrist using the strap. The user can then repeatedly throw the sports object at full range of motion and the sports object will be deposited in the sack, easily retrievable by the user for repeated throwing.