This clamp is made entirely with stainless steel. This is the most premium grade because it is the strongest. It also has excellent resistance against erosion and weathering. The PYI hose clamp was tested to last 2x longer than competing brands. Its inside surface is clean and smooth, and is not perforated. The clamp offers a powerful solid and reliable clamping force. It can be tightened to 135 times the original amount. These clamps have lifetime warranties. It’s sometimes wise to do more research on items prior to buying. It could help you save energy and decrease stress. You can learn a lot about these clamps. To learn more, take a look at this video. n17scgeizd.