Aluminium food spikes hold food for safe cutting. Cut and prepare food on the polyethylene waterproof cutting board. Aluminium food spikes hold food while cutting. Durable board has rounded edges and is easy to clean. Four rubber suction feet anchor the board securely to the surface. Two polyethylene food guards prevent food from sliding off the board. The small board measures 190mm (7 ") square, and the large board measures 280mm (11") square.Weighs 1 lbs. (.57kg). Dishwasher safe.