Description 3M 6M Aquarium Filter Cotton Fish Tank Foam Cotton Pad Mat Media Filter It effectively removes particulate matter Specification Color WhiteMaterial CottonWeight About 150g 3M 270g 6M Size 3mX12cmX2cm6mX12cmX2cmFeatures 1 This filter cotton pad is designed for water filtration in aquarium and ponds 2 It effectively removes particulate matter mechanically 3 Cut your own size filter pads to use on a variety of water filtration applications Package Included 1 x Aquarium filter cotton