Made from sustainable sources in Portugal, this frameless board is. available in naturally coloured cork. Cork provides an excellent. material for memo boards and pin boards. This is a perfect. addition for an office.. Features-. Square shape.. Natural cork.. Anti-slip base.. Size – 445mm x 445mm x10mm. Natural anti-microbial properties.. Natural insect resistance.. Environmentally friendly.. Care Instructions-. Use. a damp cloth with warm water and a mild liquid detergent. Gently. rub the area requiring cleaning in a circular motion until stains. are removed and then wipe away excess soap.