Attach notices, memos, and other items to magnetic surfaces with these heavy-duty magnets. The tub contains small, medium, and large magnets so you can pick out the perfect size, and five assorted colors let you color-code items or create a colorful display. These magnets are perfect for use on file cabinets, with whiteboards, and other magnetic surfaces. Offering three times the strength of traditional magnets, these Staples heavy-duty magnets are perfect for securing thicker papers, bundles, and heavier items. Three times stronger than traditional magnets. Attach documents and signage to magnetic boards and signs using magnets. Small magnet width: 0. 75". Large magnet width: 1. 5". Magnets come in pack of 30. Medium magnet width: 1. 13". Available in assorted colors: blue, green, red, yellow, and white. Available sizes: Small, Medium, and Large. Secure items to any magnetic surface with this 30-count tub of Staples assorted heavy-duty magnets in assorted colors.