This model was designed to give the option to securely store a spare key and airtag without adding too much to the thickness of my Ridge wallet. Ridge and other 3D print shops do offer alternatives to this, but they are two separate products and take up too much room. This model must be combined with the elastic cash strap unless another means of attachment is determined. Money can also be placed in strap comfortably on top of the Ridge Wallet Key & Airtag Holder. An additional document will be included in the .zip file that gives more information on best settings when printing this model and any other necessary information. Any questions before or after download can be sent to ask.rich.3d@gmail.com.