Description: 1. The whole hose clamp including the band, housing and screw are all made of premium stainless steel material. Salt resistant, anti rust, anti-corrosion, waterproof, oil-proof. Clamps are sturdy, strong and reliable. 2. Clamps are flexible and ductile with wide adjustable size range from 13 to 19mm /0.51-0.75inches. Fit for hose outside diameter 13-19mm/ 0.51-0.75inches. 3. Clamps are used in securing hoses, pipe, cable, tube, fuel lines etc. Perfect to apply in automotive, industrial, boat/marine, shield, household etc. both indoor or outdoor. 4. Band width of 5/16-inch better fits small hoses than larger widths. 5. It can be reused and recycle if you do not want them to stay on the original place due to the good quality material which makes them worked last for long. Specification:Material: Stainless steel Adjustable size range: 13-19mm Weight: 10pcs-30g, 100pcs-300g Package List: Choice 1: 10pcs x Hose Clamp Choice 2: 20pcs x Hose Clamp Choice 3: 50pcs x Hose Clamp Choice 4: 100pcs x Hose Clamp