Environmental protection and safety: uses virgin polyester fibers, no odor, no dyes, and refuse to add harmful substances to fish, shrimp, turtles and other aquariums. Cutting size: original size: thickness: H:3/4”(2cm)×W:1ft(30cm)×L:9.85ft(300cm), you can cut according to the size you need. Efficient filtration: imitation of plant fibers , low water resistance, strong water permeability, effective filtering of uneaten food, waste, rotten plants, debris and other large fine particles floating in water. Quality durable: the fabric is strong, soft and elastic. It can be cleaned repeatedly and can be used for 6 months. Compared with other filter pads, you can save a lot of money. Multi-layer filtration: the filter wire is divided into 3 layers, basic filtration → filtration → fine filtration, the dense fiber network at the bottom collects fine particles and creates crystal clear water in your aquarium. Widely used: suitable for freshwater or saltwater aquariums, as a wet/dry filter, drip