Features: brand new and high quality The high-quality plastic pipe will not collapse, block the water flows, and is easy to bend into any position (Note: the water outlet position must be lower than the water inlets position). A great choice for changing water and washing sand. The nozzle net prevents absorption of grass, young fish and gravel. The conjuctions of the tube, hoses and pumps of the water exchanger are tight, so there is no need to worry about water leakage. Easy to use. The siphon pumps is easy to grasp, just squeeze pumps, and the water will start to flow automatically. There are 2 style of aquariums water changing kits in different size, suitable for small, medium and large size fish tanks. Specifications: Color: As Pictures Show Style: C300/C-600 Size (Approx.): As Pictures Show Weight (Approx.): 500g Package Includes: 1 Set Aquariums Gravel Cleaner Water Changing Kits 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. Thanks!