This 40-piece interlocking drainage mat gives garage, kitchen, and outdoor floors a non-slip, water-resistant surface that's simple to install without tools or adhesive. Each 12 x 12 inch black polypropylene tile is 0.6 inches thick and locks into the next through molded tabs, so the box tiles a mid-size floor area in one setup session. Water and oil drain beneath the raised grid surface instead of pooling on top, which helps prevent slipping in repair shops, wash bays, and other areas where spills are common. The tiles hold their shape under rolling carts and vehicle weight thanks to the durable PP material, and because the system is modular, sections can be rearranged or replaced individually as needed. At roughly 21.36 pounds per 40-piece box, this drainage mat is built for steady use in busy work and storage spaces.