These super strong Neodymium magnets from Bottle Cap Inc. are 1/16 inch thick x 1/2 inch wide and will transform any pendant into an interchangeable design. Simply adhere your image to the magnet and place in the pendant. Quickly change the pendant design by removing image and adding another. The possibilities are endless! The super strong magnet stays in place and is easily removed by placing near another magnet. Each package contains 12 magnets. Made in the USA.