What's in the Package: you will receive 4 pieces sediment filter socks for drainage protection, ideal for drainage management use, sufficient quantity to meet your daily use and replacement needs, so that you have a pleasant use experience, Please note that the product is packed in double layer plastic bags, which will not affect the use of the product Filter Function: our filter fabric for drainage socks allow water to pass through easily, and can block grit, leaves or other sediment in the stormwater to help you to deal with your area drainage; They are nice for gathering waste or sediment for your convenience Suitable Size: drain filter are about 5 inches in width and 10 feet in length, enough length to use these filter stockings to keep the flow rate of water steady while avoid fine soil particles from passing through without piling or trenching Easy to Use: drain sock filters are easy to install, as long as they are placed on the ground, the socks allow water to flow, while sediment, garbage and debris are left on the side, can cover longer distances, and are convenient to use Reliable to Filter Sediment: our erosion control sock is made of felt and polypropylene material, which is not easy to deform or break, and does not contain synthetic materials; They are reliable, and will not cause trouble in cleaning, bringing you a smooth use experience Features: Practical function: Drain socks are easy to install, as long as they are placed on the ground, the socks allow water to flow, enough length to use these filter stockings to keep the flow rate of water stable. Bring a pleasant use experience: Our filter socks can help you deal with sewage, help you manage area drainage, and it is very convenient to use in daily life, so that you have a pleasant use experience. Specifications: Material: felt Color: as pictures show Size: 5 inch x 10 ft Package includes: 4 x Drainage filter sock Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays.