Features: 100% brand new and high quality Compact size is about 12 cm/4.72 inches in length. The aquarium water tube clamp is made of high quality plastic, durable and long service life, it will not scratch the glass. Easy to install, great help in water changing and cleaning the aquarium. The maximum clampable glass thickness is 12 mm/0.47 inches, which is suitable for fixing maximum 20 mm/0.79 inches water pipes. Firmly fixed, prevent the pipes from slipping and falling out. Package Includes: 1 Piece Fish Tank Pipe Clamp Holder Specifications: Material: Plastic Color: Blue Size: Approx. Diameter 12cm/4.72in Weight: Approx.26g note: 1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!