Ustide Rainbow Rug Stripe Design Welcome Doormat 18''x30'' Material: foamed natural rubber Size:17.74''x29.92''(450mm x 760mm) Thinkness:5mm(4mm natual rubber and 1 mm flock printed fabric) Flock printed surface provides a bright and vivid pattern. Natural rubber backing offers a great walking comfort due to its elasticity. Nonslip rubber backing will not scratch the floor. Environment friendly material,shake out the dust or use a vacuum or rinse with water,anti-exposure.