4Pcs Aquarium Filter Bag Replacement Filter Bags For Battery-Powered Gravels Cleaner Water Changer Fitting BagsFeatures:This replacement filter bags for aquarium battery-powered cleaner.The filter bag can be re-used by washing it under water.It should be replaced after it worn out.It is very effective,practical,easy to 4 pieces per package.Specifications:Specification NylonColor: As pictures shownSize: SizeLength: 7cm(2.76in)Width: 5.5cm(2.17in)Quantity: 4 Pcs/Bag(other accessories in the picture are not included!)Package Includes:4 Pcs Filter BagsNote:1.Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid.2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!