MatMates interchangeable doormats are made with a non-slip backing of environmentally-friendly recycled rubber tires. The top is non-woven polyester, permanently printed with fade resistant dyes. Our innovative decorative trays are also made from non-slip recycled rubber tires, embellished with a scrollwork border and decorative zinc metal corners. The corners of made of cast Zinc, which does not rust. Both doormats and trays are completely weatherproof and intended of outdoor use. The tray is 24" x 36" and the doormat inserts are 18" x 30". Inserts sold separately.