Material: quality POM plastic, good elasticity and clamping force Size: L24xW15xH11mm/0.94''x0.59’’x0.43’’, for tube outer diameter 3-4mm/ 0.118’’-0.157’’ Unadjustable, for shutting off and open the liquid. Suitable for brewing beer, wine siphon process control, simple and practical Package includes 50pcs clamps, tube not included Attention: the tubes you use the clamp for must be flexible tubes and the thickness of the tubes must be above 0.02in/0.5mm UPC 759972092543 Color White Brand Name DOPHO Style Name Modern Item Weight 1 Grams Manufacturer DOPHO Model Number LLZ-1-3-4-50PC Material Type POM (Polyoxymethylene)