Features: Make of stainless Steels, can be used for long terms use, and is not easy to rusts and break. Smooth and no burrs through holes to avoid hurting your hands. Use special slot to make it fit more closely to Pipe or pipelines and not easily deformed. 2-hole Pipe strap clamps can be installed with just the screws, which is convenient and quick. Suitable for attaching hoses, water Pipe, plastic Steels Pipe, cables, exhaust Pipe. to wood, masonry, concrete or similar surfaces. Specifications: Materials: stainless Steels Tightening diameter: 16mm (0.63inch)/20mm (0.79inch)/25mm (0.98inch)/32mm (1.26inch)/40mm (1.57inch)/50mm (1.97inch) Package Includes: 100pcs Pipe Strap Clamp(16mm/20mm/25mm/32mm/40mm)/50pcs Pipe Strap Clamp(50mm ) note: Please allow 1-2cm errors due to manual measurement, make surely that you not mind before order. Due to difference between different monitors, the picture may not reflect the actual color.