ANTI RUST - Compared with metal pipe clips clamps, plastic pipe clips will not rust and are very lightMATERIAL - Made of PVC material, with tight structure and high strength, which can fix and protect pipelines well, ensure long service lifeSIZE - Height (without pipe installed):1¼" (30mm). Best for 1" CTS (15/16" OD) (24mm) tubing sizeUSABILITY - Mainly used for the installation of plumbing pipe, cable pipe, gas pipe, water pipe and other pipe fittings fixed on the ground or wallSATISFACTION – Our first priority is your SATISFACTION. If you have any problem, just leave a message and we will find the best solution that will make you fully happy Product Description Effective, versatile and reliable way to secure tubing This is designed to allow installation of clips prior to tubing installation. U-Hook design helps clamp tubing together Snap-in design allows for fast and easy installation Durable plastic construction Recommended installation spacing is 24-30" for horizontal runs and 36-48" for vertical runs of tubing.