TJ Longda 50 Pieces Stainless Steel Single Ear Hose Clamps Size 5/8" or 15.7mm (NOT Pex Clamps) 1. Made of Stainless Steel Band UNS S30400. 2. To use in the industries like automotive, food and beverage, and so forth. 3. Precise tongue-in-groove seamless design. 4. Smooth inner circumference for 360 degree uniform seal. 5. Not Pex Clamps and do not apply to 5/8" Pex pipes.