This wristlet is ideal for accessorising your case, elevating your look, and adding a functional touch to your everyday essentials. It's smart, easy to use, and attachable to most phone cases. The attachment patch is included. Our wristlets, or phone straps, attaches to your phone case with an attachment patch. * Attachment patch to connect to your phone case is included (phone cases are sold separately) * Functional hook for easy attachment * Recycled material This wristlet fits most phone cases, not compatible with iPhone model X, XS, X Max (combined with IDEAL OF SWEDEN CASES 11 Pro and 11Pro Max). We do not recommend to combine this product with our Clear and Silicone cases if you have any of the following phone models: iPhone 11/11 Pro/XR,XS, XS Max. Please follow our guide on how to use it. The attachment patch/chain should be attached to the phone case in accordance with our instructions in the guide. If not, IDEAL OF SWEDEN is not responsible for any damage or lack of function