The Basics Pre-cut Adhesive Back Magnetic Squares are perfect for de-potted shadows, blushes, and bronzers that were not meant for magnetic palettes.  The Benefits Peel the paper backing and stick to the bottom of your makeup pans to instantly transform non-metal pans to metal for a strong magnetic bond to your Z Palette. Write the shade name directly on the metal sticker to keep track of all your shades. The Specs • Pre-Cut Magnetic Stickers • 3/4" x 3/4" Square Magnets - 30 Count