UGREEN Desk Smartphone & Tablet Lazy Flexible Arm Holder can let you conveniently view your devices at the ideal distance and angle when you are lying in bed, eating, reading, cooking, typing, writing, watching movies or playing games. It can firmly clamp the chair, table, desk, and bed headboard with 2.5-8 cm thickness. Compatible with 4-12.9" smartphones and tablets. Can Work At Any Angle With a 360 degree rotating flexible mount , 2-stage sturdy and 180° adjustable aluminium alloy arm with 26" length, it could be adjusted at the ideal distance and angle with convenient viewing. Premium Aluminium Alloy Arm Better Than Gooseneck Design 2-stage sturdy and adjustable aluminium alloy arm ensures durability and easy stability, providing more precise and stable positioning than gooseneck design without any shaking . Tool-Free Installation 30-seconds installation, no holes, no drill, firmly clamp the chair, table, desk, and bed headboard and much more. Note: For 12.9" iPad Pro, it is recommended to take off the protective case. The maximum thickness of the protective case should be within 3mm. This product is available for adults; Children need adult care and supervision when using this product. Compatibility: Fit for 4′′, Max 12.9′′ Premium Aluminium Alloy Arm Convenient Viewing with 360 Degree Rotating Mount 180 Degree Adjustable Arms Dimension(L×W×H): 429.0 × 93.98 × 163.0 mm Weight: 0.88 kg Package Contents: 1 x Ugreen Desk Smartphone & Tablet Lazy Flexible Arm Holder