BING The mat have the right size to provide ample playing space and with a 7 mm THICKNESS to cushion falls during crawling. The materials and paints used are completely non-toxic. The mat is designed with nice and brightly colored drawings of the characters from Bing's world! Ideal for crawling, for playing on the ground and to avoid contact with cold and damp surfaces. Wash only with damp cloth with water. Do not use chemicals that could alter the quality of the carpet.