High Precision Spring Clamp - Made of high-quality spring steel for durability and reusability, with zinc-plated surface for corrosion resistance. Available in multiple sizes: 8mm, 13mm, 16mm, 17mm, and 20mm, allowing adjustable fit for various pipe diameters. Specifications: Natural diameter example: M5 = 5mm; Maximum extended diameter: 5.8mm. For detailed dimensions, please refer to the size chart. Package includes 12 spring hose clamps. Universal clamps commonly used for air hoses, oil hoses, fuel hoses, silicone hoses, drain hoses, washing machines, and household appliances. Suitable for both domestic and industrial applications. Multiple sizes provided to meet various needs. Please review product details carefully before purchase to ensure correct size selection. Note: Measurements are taken manually and may vary slightly.