Usage Tips:[material]: clamp ring is made of stainless steel, which is strong and durable. It has good corrosion resistance, heat resistance, low temperature strength and mechanical property. [360 sealing protection]: These rings fast and connection for all pipe fittings. The ear clip shrinks and evenly around the hose to form a good air- and liquid- connection and a complete 360-degree watertight seal. It is safe in any pipeline use system. [Wide application]: clamp ring is widely used for crimping pipe fittings or pipes of any brand. It is widely used in all piping , such as water heater, air conditioning system, piping system, circulating heating system, electrical piping, etc. [Easy to install]: For all fixture sizes, crimp ring only needs one installation tool. You can the crimp ring onto the pipe, the pipe onto the fitting, and then squeeze it with the clamp tool to achieve a safe connection. [Package includes]: There are 100 Cinch snap rings in the package. This stepless ear clip is used to fix the ferrule to the insertion fitting. Colour:silver Material:Stainless steel Size:20.3-23.5mm Package Contents: 100 x Cinch Only the above package content, other are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real . The measurement allowed is +/- 1-3cm.