Material and specification: brand new ABS plastic, 15.5 x 9.2 x 7cm, adjustable bottle diameter from 6cm to 8cm, suitable for large cups and cans. It can be used for: 1. The back seat of the car 2. The air conditioner whose fan blade spacing is less than 7mm and width greater than 17mm cannot be used. Advantages: This car holder is very stable and the cup will not fall. Plus, keep your drinks hot or cold when the air conditioner is on. Easy to install and remove, just press the spring clip to install the vent securely. NEW DESIGN: Our new bobbin holder can be rotated 360 and swivels individually with a ball joint. Depending on its expandability, it can accommodate cups of different sizes. It is compact and ultra-lightweight, making it easy to carry and store in your bag.