Features: Design with submersible and suction cup , this pump ensures quiet Operations and energy efficiency, provide flexibility for different setups in freshwater and saltwater aquariums. Great for Aquariums enthusiasts, home Fishtanks, and small scale Aquariums operate, this pump is great for those searching great customizabing water Circulations solution. Suitable for quarium fish tanks, garden fountains, bathhouses, water replacement, dripbox, top bottom filter, artificial rockeries and flowing water. Use ABS, this pump not only enhances water quality through effective filtration also support hydroponics and pond Fountains applications, multifunctional addition to any aquariums. The bottom of the water pump is equipped with 4 antislip suction cups, which can effectively adheres to the cylinder wall and reduce vibrations. NOTE: The controller is not waterproof. When the water pump is in operating, it should submerging the water intakes meshed covers. It can be pump to a water level as low as about 1 cm. The specific level should be depends on actual use. Specifications: Product Dimension: Approx. Water pump size 4.8x3.6x5.3cm/1.89x1.42x2.08inch Component: ABS Type Option: 13 optional type as pictures shown Package Includes: Type 01: 1PC USB Water Pump Type 02: 1PC Water Pump (Power NOT included) Type 03: 1PC Water Pump with Power Type 04: 1PC Water Pump with Power and Adjuster Type 05: 1PC Water Pump (Power NOT included) Type 06: 1PC Water Pump with Power Type 07: 1PC Water Pump with Power and Adjuster Type 08: 1PC Water Pump (Power NOT included) Type 09: 1PC Water Pump with Power Type 10: 1PC Water Pump with Power and Adjuster Type 11: 1PC Water Pump (Power NOT included) Type 12: 1PC Water Pump with Power Type 13: 1PC Water Pump with Power and Adjuster note: Please allow 1-2cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color the item.