This was received from someone. It was unopened, but I opened it for the photos. 50 x 4 bags, 200 pieces [200 Replaceable Mesh Bags:] Comes with 200 mesh bags for replacing the mesh bags for the kitchen sink triangle holder filter. [Strong and Elastic]: Made of high-quality polyester fiber, it has elasticity and strength, and is easy to install. Filter Mesh Bag Material: High-quality polyester fiber Triangle Holder Size: 21 x 21cm Triangle Holder Material: PP