500ml Oil Suction Syringe, Oil Extractor, Liquid Extraction and Filling Pump, Automotive Fuel, Packing List: 1 x Suction Syringe 2 x Connecting Tubes 2 x Rubber Rings You can easily remove the hose if you need to change or replace it, or if you just want to remove it for storage. This is a slightly movable spring that allows the hose to be easily removed. It may not be noticeable when removed. 2. It can be used to pump liquid instead of sucking liquid. 3. Easy to disassemble and clean to avoid cross-contamination of different fluids (such as engine oil, antifreeze). 4. It is also convenient to fill or top up water tanks in places where the bottles are not easily accessible. If you apply too much force (which is difficult at first with some tools), the hose can come loose from the pressure transfer, so you need to pull slowly to prevent this from happening. If there is a liquid leak, you will need to ask if the hose is installed correctly and you can readjust and reinsert it yourself.