【Easy to Mount】Dosvsi Tablet clamp mount is suitable for many types of boat's helm, securely clamped on any tubular pole, bars, posts and rails diameter: 0.55 - 1.7" (14 - 43mm). Fits for sail boat, fishing boat, speed boat, pioner boat, sea fox boat, yacht, sailfish boat, motorboat, quicksilver boat, orion plate boat, draco boat, rayglass boat, veitch boat, rhib boat, zodiac boat, dinghy, etc. 【More Secure & Stable】This ipad mount for boat is made of high quality ABS, can hold your tablet/phone stably in the place even in the rough water or strong winds conditions. The clamp equiped with anti-slibe rubber to ensure great stability and keep from scratches. 【360° Adjustable Angle】Tablet pole mount with universal ball design can be rotated 360° and 180° tilt to provide you a best viewing angle(horizontal & portrait). Convenient for tablet navigation, music, movies, fishing and other boating activities. 【Wide Compatibility】Boat helm rail tablet holder is fit for all 4-13 inch screen mobile phones and tablets, compatible with iPad Pro 11 12.9 13, iPad 10.2 (10th/ 9th/ 8th/ 7th generation), iPad Air 6 5 4 3 2, iPad mini 2 3 4 5 6 7, Galaxy Tab S9 S8 S7 S6 A8 A7, iPhone 16 15 14 13 12 11 Pro Max, iPhone 16 15 14 Plus, iPhone 13 12 Mini, iPhone Max Xs XR X 8s, Galaxy S22 S24 S23 S22 S21 Ultra / S21+ Plus / S21+ / S21 / S20 / Note 20 Ultra / Note 20, and more. 【High-quality After-sales Service】All Dosvsi products provide 60 days refund and 12 months manufacturer quality after-sales service. If you have any questions during use, please contact us.(Box's includes: 1x clamp mount, 1x tablet/phone bracket, 1x user manual.）