PEAK DESIGN MAGNETIC MOBILE SLIM WALLET MOBILE SHALL YOUR MAKE AND WALL CALCULATION SHALL YOUR WEEKEND. This eclipse thin wallet uses magnetic slimlink connection to fix the compatible Peak design cases. It also works with Magsafe tools and Peak Design Universal Adapter. Strong neodymium magnets are strong, but they provide a secure connection to the cards and most hotel key cards. It can accommodate up to 7 cards, which are safely held safe. This strap also functions as a pulp so you can easily access them if necessary.