Includes: (4) 2.5” Double Loop Quick Release Hose Clamps 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 Versatile capacity: Dual-Loop feature insures optimal tight, quick and simple connect and disconnect capacity; A perfect clamp when you need to shift the dust-collector from one machine to another Premium build: Made from steel with coating for durability, corrosion resistance and high performance Specifications: The 2½” clamp opens up to approx. 3” ID when fully opened (with handles squeezed together)