For the mechanics, HVAC folks, or serious DIYers out there, these Breeze Constant-Torque clamps are the real deal. This is a pack of 10. They're not your average hose clamps. They're called 'constant-torque' because they actively adjust themselves. Here's the thing: when rubber hose compresses or when metal heats up and expands, normal clamps can loosen. These clamps have special stainless steel Belleville springs inside that automatically compensate for that thermal expansion and contraction. So once you install it and torque it properly (you can visually check it with their 'Torque Check' feature), it maintains that pressure. No need to keep re-tightening! They're super strong with a quadra-lock construction (riveted in four places) and have a liner to protect soft hoses from damage. They're made entirely of stainless steel, so they won't rust and are totally reusable. The size range for this pack is a minimum diameter of 1-5/16 inches and a maximum of 2-1/4 inches. They're a fleet standard for a reason – reliable, easy to install in the field, and built to last virtually forever. A professional-grade solution for critical connections.