- Safety snap design with an adjustable locking ring keeps the hose clamp in the desired position. The locking ring provides a secure lock, making work safer and reducing the chance of damage or fluid loss. - Versatile three-size set: 2 small clamps, length 155 mm, clamp range 0-20 mm; 2 medium clamps, length 185 mm, clamp range 0-35 mm; 2 large clamps, length 255 mm, clamp range 0-65 mm. A total of 6 clamps in 3 specifications to cover a wide range of hoses, including most vehicle hoses. - High quality plastic material: non-conductive and heat resistant, designed for long service life. Protects the hose liner from damage, suitable for workshops, DIY projects and home use. - Practical features: bright yellow color helps prevent loss or misplacement. The handle features a unique card-slot design for comfortable, slip-resistant card positioning. Lightweight, convenient and quick to use. - Use scenario 1: Automotive maintenance and repair. Use the appropriate size clamp to secure hoses during radiator or coolant hose replacement and other hose fittings, with secure locking to prevent leaks. - Use scenario 2: DIY and workshop projects. Ideal for temporarily clamping hoses during assemblies, testing, or routing in hobby projects and small repairs. - Use scenario 3: Home irrigation and appliance setups. Quickly secure garden hoses or appliance tubes where a temporary, non-conductive clamp is beneficial.