Flip Flopper Memo Magnet - Pin Memo, Note on Refrigerator, File Cabinet, Metal Desk and More. Set of 3. DESIGN : These are uniquely designed magnets that flip back and forth in a rocker switch fashion to quickly pin and release memos and other papers that are being held by it. TO PIN A NOTE : To pin a note, just stick it under the raised portion. PRESS AND SNAP : Press the magnet will instantly "snap" into place and the paper is now held securely. STRONG :it's too strong to pin and hold ten full size sheets of paper without failing! SIZE : Magnet measures 4 1/4"L x 2"W x 1/4" on the raised wing.