[High quality material] Our screw clamp set consists of 201 stainless steel material, which has a high level of hardness, durability, rust-free and anti- properties. Our pipe clamps with solid construction and exquisite craftsmanship, rustproof. It will always look new after a long period of use. [Perfect hose clamp set] The hose clamp set is flexible and ductile with a wide adjustable size range from 8 to 38 mm. Contains 7 different sizes: 8-12mm, 10-16mm, 13-19mm, 16-25mm, 19-29mm, 18-32mm and 25-38mm for each type, 70 pieces in total, enough for replacement and daily replacement life. [Easy to use] The stainless steel hose clamp is easy to use. Slightly loosen the screw of the hose clamp with a screwdriver, thread the tube through the hose clamp and adjust the fit. Tighten the screw, easy even for beginners. [Wide range of applications] The package contains 70 adjustable hose clamps, a 1-part Z wrench and a storage box. Use to secure hoses, pipes, cables, pipes, fuel lines in home, automotive, industrial, marine or marine applications, etc. to meet your different needs. Colour:Silver Material:Stainless steel 201 Package Contents: 1 * Z key 1 * storage box 12 * 8-12mm pipe clamps 12 * 9-16mm pipe clamps 12 * 13-19mm pipe clamps 12 * 16-25mm pipe clamps 12 * 19-29mm pipe clamps 5 * 22-32mm pipe clamps 5 * 25-38mm pipe clamps Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.