About this 3D model

Summary Universal smartphone holder for the CD slot in the car. In addition, you need 6x12x4 ball bearings like these: https://www.amazon.de/Carson-500904011-Kugellager-12-St%C3%BCck/dp/B0043RUEHA/ref=sr_1_4?__mk_de_DE=%C3%85M%C3%85%C5%BD%C3%95%C3%91&dchild=1&keywords=6x12x4+kugellager&qid=1627413410&sr=8-4 and springs like these: https://www.amazon.de/gp/product/B07PYPCW5W/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1