The Wolfcraft 3662000 Universal Clamp with Mini Suction Cup and Max. 20mm Microfix is designed for securely attaching and clamping microfix parts without having to drill or use screws. The durable plastic housing and replaceable suction cup have a maximum clamping diameter of 20 mm and provide a non-marking grip on a variety of surfaces and materials. The built-in ratchet und smooth protection ring ensure precise and secure clamping. The minimum clamping depth is 4 mm. This clamp is ideal for small and delicate woodworking and hobby projects.