High-quaility PVC material, , no smell & non-toxic Thickening edge design with smooth surface, and durable Antiskid lines, the product use scientific grain grain concave and convex design Size: 23 cm (9") high, 17 x 17 cm (base) Ideal for all sorts of field and court sport training such as soccer, football, basketball, volleyball, tennis, cricket, etc., even track and field spo Suitable for indoor and outdoor use