Finish the perimeter of an interlocking drainage mat installation with this 11-piece transition edge kit, built to hide exposed tile edges and give the floor a clean, finished border in bathrooms, pools, kitchens, and restaurant wet areas. The high-strength polypropylene construction resists wear, moisture, and corrosion, so the edge pieces hold their shape rather than cracking or warping over time. Installation is tool-free: align each piece with the mat direction and press it into place, and the modular design lets you cover irregular layouts or upgrade an existing floor without starting over. An open-grid structure beneath the edge kit allows water and debris to flow through rather than collecting at the border, so a quick rinse keeps it clean. Made to work exclusively with interlocking drainage mats, this black edge kit is not compatible with other flooring brands.