1100% brand new and high quality. 2Made of high quality engineering plastics material, durable to use 3By separating the motor of the conventional water pump and making full use of the mechanical kinetic energy of the household hand drill as a power unit, no power supply is required. 4The design can also be used as an accessory for household hand drills, which has the advantages of flexible use, low transformation cost and no damage. 5Micro pump for hand drillFeatures: _x000D_1. 100% brand new and high quality _x000D_2. Made of high quality engineering plastics material, durable to use _x000D_3. By separating the motor of the conventional water pump and making full use of the mechanical kinetic energy of the household hand drill as a power unit, no power supply is required. _x000D_4. The design can also be used as an accessory for household hand drills, which has the advantages of flexible use, low transformation cost and no damage. _x000D_5. Micro pump for hand drill _x000D_ _x000D_Specification: _x000D_Condition: 100% Brand New _x000D_Model: J137 _x000D_Material: Engineering Plastics _x000D_Weight: Approx. 393g / 13.9oz _x000D_Size: Approx. 125 * 107 * 78.6mm / 4.9 * 4.2 * 3.1in _x000D_Internal Diameter: Approx. 15.8mm / 0.6in _x000D_Outside Diameter: Approx. 21mm / 0.8in _x000D_ _x000D_Package List: _x000D_1 * Hand Drill Pump _x000D_ _x000D_Note: _x000D_This pump must be used in conjunction with a hand drill to pump water