This tiny Smartphone holder kitcard is reusable and the size of a Credit card so it fits in your wallet. But it is only meant to hold your phone sideways and phones with thick cases might not fit. Be aware that some filaments will shrink so the pieces might not hold anymore. I also like to give cerdits to the German manufactory Lockcard where I became the idea for a phone holder the size of a credit card defiantly check them out: https://lockcard.com.
I apologize if I spelt something wrong I´m not a native speaker.