Durable: Made of sturdy and corrosion-resistant material, built-in double rubber pads, fit the piston closely to avoids leakage, providing a durable and long-lasting solution. Convenient Engine Oil Extractor: Transparent bottle with clear volume scale for better viewing and easy control of the extracted liquid volume. Locking design helps to use the tube safely, just push the hose into the pump head and it is locked into place automatically. Simple syringe-type action, easy to operate. Versatile Fluid Extractor: Suitable for extracting or changing brake fluid oil, engine oil, gear oil, gearbox oil, transmission oil or lubricating oil in ATV's, ships, agricultural equipments, industrial gearboxes, all-terrain vehicles, motorcycles, RV's, etc. Auto-locking design:This oil suction g