High Quality: The black mesh bag is made of polyester. Durable and reusable. The soft and lightweight mesh pump bag allows you to use the pump well. Does not include pumps. Suitable Size: The size of this bag is about 45 * 45cm / 17.72 * 17.72in, which can accommodate most common pump sizes . Please pay attention to whether the size of the bag is suitable for your pump before purchasing. Easy to Use: The drawstring pump bag allows the pump to stay safely in the bag . Just put the pump into the bag, tighten the drawstring, and the bag can work normally. Function: Prevent harmful debris from entering your pump, minimizing pump maintenance. It can protect your waterfall pump or swimming pool pump from most trash and extend the life of the pump. Applicable Scenarios: This pump bag is suitable for most pumps placed in water tanks, ponds, aquariums to keep your entertainment areas clean and tidy.