The armrest box is a complete set, including the base and the box, you can use it without buying other accessories. Name: Car Armrest Box/pad Material: PU Leather + Plastics Size: A/B31X13X16cm C34*15*16cm Color: All black / Black red line / Black white line Compared: A style: single layer, no USB,armrest box + base. B style: double layer, 3 USB,armrest box + base (Give Data cable and charger). C style: double layer, 7 USB ,armrest box + base (Give Data cable and charger). Features: 1. The surface leather is soft and makes the elbow relax. 2. B / C style USB can charge the mobile phone. 3. As a storage box, it can store many things. 4. B style / C style is double-layer, which can better classify items. 5. Retractable lid for better driving experience. Package: 1pc (including box and base) The armrest box is suitable for the hole behind the handbrake.If you need an armrest for other models,