About this item INCLUDES: (1) 4″ x 10′ long left spiral clear flexible hose (2) 4” Double Loop Quick Release Hose Clamps QUALITY: Hose made from high quality PVC for durability, strength and easy installation; Clamps made from steel with coating for durability APPLICATIONS: Ideal for an assortment of sawdust collectors, air conditioning indoor ventilation ducts and 4” PVC dust collection systems for woodworking applications FUNCTION: A quick release clamping tool for establishing a firm, secure connection from your dust collection hoses to fittings, dust hoods, blast gates, dust ports, and other components SPECIFICATIONS: The 4″ clamp opens up to approx. 4.5” ID when fully opened (with handles squeezed together)