Power Magnet - 3x the Holding Power! A magnet with muscle, this item can hold up to 8 pieces of paper. Please specify calendar on purchase order.More power to you for selecting this great product for your event! With a total thickness of .055 mil, our power magnet with monthly calendar design encompasses 3 times the thickness and holding power of our regular magnets; it can hold up to 8 pieces of paper! Customize with a four color process imprint and hand out at your next convention or tradeshow! Measures 3 13/32 x 3 29/32. Always-in-stock item. Custom shapes available - call for quote.