World Pride Hard Carpet Protector Anti-slip Chair Mat Rectangle 47" X 35" Material: premium PVC Approx. Size: 47x 35 x 0.05 " Net Weight: Approx. 2kg/4.4lbs Suitable for hard floors Its been curly packaged during the transport, you just need to make the curly side facing the bottom of the floor and put it aside over a period of time.