Features: Make of stainless steel, It have good corrosion resistance, heat resistance, low temperature strength. The internal narrow band design have no protrusions and gaps, providing more concentrated sealing pressure and forming a complete 360-degree waterproof seal. Hose clamp is used to seal all kinds of hoses-hot water heating systems, air conditioning systems, water heater, telecommunication electrical pipeline, food pipeline systems. Easy to install: Slide the clamping rings onto the pipe, push the pipe onto the pipe fitting and squeeze it with the clamping tool. Hose clamps are used to seal various types of hoses. Provide firm, leak-free and reliable crimping joints. Specifications: Materials: Stainless Steel Size: As Shown in the Picture Package Includes: 10pcs 5.8-7.0mm 10pcs 7.3-9.0mm 10pcs 8.8-10.5mm 10pcs 10.8-13.3mm 10pcs 12.3-14.8mm 10pcs 17.8-21.0mm 10pcs 16.0-19.2mm 5pcs 19.4-22.6mm 5pcs 20.3-23.5mm note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.