Features: _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