It has a wide range of compatibility and can be compatible with devices such as mobile phones and tablets over 5 inches. The powerful spring design can let you adjust width to suit different models. It contains silica gel for strong protection and does not damage the car backrest and mobile phone. This product can be arbitrarily telescopic viewing distance, the adjustable range of long and short distances is 18cm-35cm. Type: Car Back Seat Holder Material: ABS, PC, Aluminum Alloy, Silicone Features: Adjustable, Universal, Easy Installation Size: 28.5cm x 17cm x 4cm/11.22inch x 6.69inch x 1.57inch(Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Car Back Seat Holder (Others Not Included)