Size: 29 cm in diameter. A wooden coaster is sent as a gift with your order. There will be a gift with each order, but the number may vary. The product is made of 18 mm A-A quality Solid Pine. Cut on CNC machine with minimum error. A smooth surface was obtained by sanding with 400-600 grit sandpaper. The surface is protected with a special oil suitable for contact with food. Since the product is produced from wood, contact with machinery or direct water MUST BE AVOIDED. It would be better to wipe the product with a slightly damp cloth. Product dimensions are 29x29 cm.