This hand grip hose clamp assortment kit contains 2 boxes with 30 pieces each, crafted from premium 201 stainless steel to deliver solid rust and corrosion resistance for long-term household plumbing use. The set includes five common adjustable diameter ranges: 8-12mm, 10-16mm, 13-19mm, 16-25mm and 19-29mm, matched with corresponding quantities to cover most daily pipe connection demands. Each clamp comes with an integrated ergonomic plastic twist handle, fully tool-free operation—users only need to manually twist the grip to lock the hose tightly, eliminating the need for screwdrivers or wrenches during installation and removal, greatly boosting work efficiency for DIY repair and professional plumbing tasks. The serrated steel band offers uniform compression force to avoid hose leakage while preventing damage to soft pipeline surfaces. All clamps are neatly stored in a transparent divided plastic storage case, which sorts each size separately for quick identification and convenient carrying, ideal for indoor and outdoor maintenance. Widely compatible with multiple pipeline types, including washing machine water hoses, water filter connecting pipes, natural gas hoses and general household water pipelines. The stainless steel structure maintains stable clamping performance under damp or humid environments, resisting oxidation and rust even with long-term contact with water and gas. Manual measurement may bring minor size deviations, and slight visual differences may exist due to shooting lighting, please refer to actual received products for reference. This multi-size hose clamp kit is an essential hardware accessory for all home pipe installation and leak repair work.