Cmxsevenday No.7825 Whiteboard Magnetic Button, 30mm Diameter, Rotundity, Assorted Color, 6 PCS Pack Material: plastic + magnets Size: 30 x 30 x 10mm(1.18'' x 1.18'' x 0.39''); Shape: rotundity x 6 Color: white, red, black, blue, orange and green Usage : holding items on Filing Cabinets, Whiteboards, Bulletin Boards, Magnetic Maps and Refrigerators It is ideal for office and school holder stationery