Tight & Strong: Made of premium 65Mn spring steel, in use and have a long serving time. construction and hold very well Protect Hose & Prevent Leakage: 360 Degree Inner Ring Design, prevent damage to the pipeline effectively; line hose clamp can a reliable and leak-proof connection between the hose and the joint, and is very suitable for connecting the hose to the joint to prevent leakage You Get: 91Pcs Spring Band Hose Clamp Kits with Hose Clamps, including 15x21mm, 20x19mm, 20x10mm, 20x13mm, 15x17mm, spring clamps and hose clamps -R Easy To Use: Equipped with professional labor-saving hose clamp, built-in labor-saving spring, convenient and labor-saving, automatic rebound, improve work efficiency Spring hose clamps are used in a wide range of applications, suitable for lines/vacuum hoses/gas pipe/air hose/water pipe/silicone hose, great choose for garage, boats, motorcycles, lawn and car engines connection, etc, Manufacturer: Akfldms