Mini Donut Magnet – Pack of 29 PieceProduct Details:29 Mini Donut Shaped MagnetsDimensions:1.235″ O.D. x 0.375″ I.D. x 0.190″ ThickFerrite: Grade 5 (Anisotropic, Lower Coercivity Than Grade 8, Approximately the Same Remanence as Grade 8)Great for Experiments and Science ProjectsKeep things organized on the RefrigeratorYour Cost is About 20.5 Cents Each!UNKRP007695