Stable viewing platform due to extra-strength 10 inch arm (13'' total height). Flexible- 360 degree rotational capability from cradle. Protective- soft holder grips/backing will not scratch your Device Simple to install - adjustable base fits perfectly. Base can fit vehicle cup holders from 2.86 inches up to 3.47 inches. 13.5 inches refers to the extended arm fully erected Universal Fit - Outfit your vehicle with a tough durable mobile device holder with a universal cradle that ensures the tightest grip on even the roughest terrain. The arm is adjustable and the base accommodates most cup holders. Rotates 360 degrees - Position your phone to the perfect viewing angles with the 360 degree rotation capabilities of this cup holder phone mount. Build Quality - This is better than any other cup holder phone mount, made with high quality materials that holds your phone safely and securely wherever you go. Extendable sidearms which can be adjusted to hold any smartphone. Introducing the Cellet Adjustable Automobile Cup Holder Made with an adjustable heavy base and durable plastic, the phone holder will securely lock in your cup holder. Hold your phone without concern for your phone moving as you drive Featuring one-button release side arms and convenient holder legs, the cradle can firmly accommodate devices up 4.75 inches wide. The holder has 360 degree rotational capability and soft holder grips/backing will not scratch your device. Cellet, the largest wholesaler and manufacturer of mobile accessory brand for over 30 years. Cellet is proud to announce that all of our products are designed in USA. High Quality Sound and Premium Products Cellet’s products are inspected and tested before shipment. We have over 3,000 products to choose from. Certified from Wireless Manufacturer Most of our products is certified from Apple, UL or third party inspection companies. Superior Customer Support Cellet is committed to providing reliable and unsurpassed customer support.