Used for holding up blankets and rubber cover up. Strong spring tension. Holes are to grip conductors to prevent line hose from sliding. Rubber end caps for protection. Weight: 4 oz. Size: 10″ x 5″ x .75″. 2 Styles available. CAT. NO. USBA-001 : Hand OperableCAT. NO. USAB-002: Designed for remote operation using a shotgun stick.