This is an adaptive phone holder for Mazda Miata/ Fiat 124 Spider. It uses the cup holder slot so it doesn't block any A/C outlet or infotainment screen. Since the dimension is not small, 4 M2 thermoplastic inserts and screws are used to fix the upper part and the lower part together. Inserts and screws are available on McMaster-Carr. M2 Thermoplastic inserts (https://www.mcmaster.com/94180a312); 2 x M2 6 mm screws (https://www.mcmaster.com/91290a013); 2 x M2 12mm screws (https://www.mcmaster.com/91290a019)