Yesido C33 Mobile Phone Holder Flexible Arm Mount Office Tablet Holder Yesido C33 Adjustable Phone Tablet Stand. Size 4-11 inches. 360 degree rotation multi-angle viewing. 4 Helical pivot points, multi-directional angle adjustment. Silicon impregnated surface, take off or hold your mobile phone or tablet without scratches. The metal built into the chassis makes the center of gravity more stable. You can reserve the charging port for your device.