Are you tired of low-quality, weak magnets? Want to find strong ceramic magnets? Tiny magnets with hole are the ideal to hold things on all surfaces. MORE We understand how annoying weak and not durable magnets can be and we would like to introduce round hole magnets by X-bet MAGNET to solve this problem. * The set of circle magnets includes 40 PCs. Craft magnets can be used in various fields: craft, hobby, home, office etc. * The actual size of our durable ferrite magnets strong is outer diameter: 31 mm, inside diameter: 9,5 mm, Thickness: 4,75 mm. * Circular craft magnets round are strong and high-quality. Round flat ring magnets are made by iron oxide, sintering and the pressing of a powdered mixture of strontium.