Rubber Magnet Round Disc Rubber Magnet Single-sided Adhesive(https://www.mlmagnet.com/product/rubber-magnetic-strip/round-disc-rubber-magnet-singlesided-adhesive.html) This round disc rubber magnet single-sided adhesive-backed magnet is perfect for attaching to your refrigerator. Round disc rubber magnet single-sided adhesive has a circular shape with a magnetic back. Can be attached to any metal surface, making it perfect for the fridge, toolbox, or whiteboard.