[Why do you need a wave pump?] In order to avoid the fish tank from losing vitality, create waves to increase the movement of the fish, making the fish more energetic and more beautiful. The wave machine helps to circulate water in a container that does not usually move. The water in this area is deoxygenated and may affect the overall balance of the water tank. Balance this and distribute oxygen. At the same time, avoid dust accumulation in the fish tank, which is difficult to clean. [360°Rotation Adjustable] This wave pump can be rotated. Easily adjust the direction and control the direction of water flow in the fish tank without dead ends. Please choose a suitable wave pump according to the size and needs of the fish tank. [Strong suction cup, ultra-quiet fish tank circulation pump] The strong suction cup can be adsorbed on any corner of the glass wall of the fish tank, without damaging the glass and causing scratches, regardless of the thickness of the fish tank wall. Add shock-absorbing nail design to reduce vibration and be ultra-quiet. The pump must be completely immersed in water, and the noise is almost inaudible, less than 30 decibels, which can be used for quiet pumps in the bedroom. [Encrypted Thickened Filter Cover and Propeller Design] reinforced ABS shell with a small profile that protects fish without affecting water intake, so it doesn't take up too much space in the tank. Plug Type:EU Plug,it applies to Indonesia, Germany, France, Spain, Italy and so on. Voltage:AC220V Colour:As Shown Material:Plastic + Electronic Package Contents: 1 * Wave maker Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.