Design: The sturdy filter screen can prevent tearing and clogging. The sturdy filter bag can protect the pump from harmful debris; the screen prevents harmful debris from entering the pump, thereby minimizing pump maintenance. How to use: The convenient drawstring and buckle are easy to use. Put the pump in the bag and tighten easily to protect the pump. Multi-function: not only filter bags, but also can be used as storage bags for home storage, outdoor travel storage, etc. Colour: black Material: polyester Size: 30x40cm/47x47cm Package Contents: 4 * Water filter bag (2 per size) Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.