VEVOR Sediment Filter Sock, 4Pcs Erosion Control Socks Dia. 5 in x 10 ft L Coverage, Polypropylene Filler, Flexible & Efficient Silt Fence Socks for Storm-Water Management, Drainage Protection 10FT Sediment Filter Sock Dual-Function Filtration Protects Drainage Systems Controls Soil & Sediment Spread Erosion Control for Farmland Easy to Use & Durable Item Model Number: WY-12130-4,Product Weight: 21.16 lbs / 9.6 kg (Each),Material: Nonwoven Fabric ,Filling: Polypropylene,Single Product Size: 5 in x120 in / 127 mm x 3048 mm,Number of Piece: 4PCS