Specifications: Material: ABS + Polycarbonate Colors: Black Size: 8 * 3 cm / (3.15 * 1.18 inch) Properties [Compatibility] Can be used to hold all kinds of sheet metal to the tube frame. Compatible with any type of pipe, including PVC. [Reinforced Plastic Clamps] Our clamps are frost and UV resistant for extended use indoors or outdoors. The material is held firmly even in a windy environment. [Ideal choice] Ideal for greenhouses, shelters, banner frames, quilting frames and more. Scope of delivery: