TJ Longda 50 pieces Assortment Case-SS Single Ear Hose Clamps 5/8" to 13/16" or 16.2mm-21mm 1. Clamps are made of Stainless Steel Band UNS S30400. 2. Smooth inner circumference for 360 degree uniform seal. 3. High quality case (size: 6.5"X1.13"X3.75") made in US. 4. For Automotive Industry not for Pex Plumbing. 5. ASIN: B00LRSP55Y for 60 pcs assortment case.