This Gooseneck Clamp/Stand/Tablet Holder by CTA Digital features a sturdy, flexible design that lets you create a tablet workstation on the fly wherever you need it. The adjustable clamp uses powerful rubber grips and a rotary tightening mechanism to give you fast, easy setups for Boat Helms, Wheelchairs, Hospital Bed Rails, Classroom Desks, Conference Tables, Podiums, and more. This tablet holder will attach to cylindrical objects like Boat Bimini Frames, Wheelchair Arms or Hospital bed rails by removing the tabletop grip insert, accommodating both vertical and horizontal setups. Excellent for personal use.

Specifications

Compatible with 7-13 inch (Diagonal) tablets, including iPad mini, iPad Air, iPad Pro 12.9, Surface Pro 4, and many more.

I used it on Freedom Boat Club Bimini Top Frames in Florida. NOTE that the tablet is NOT included in this auction, only the Holder.  Also note that there are no returns on this item. 

Maximum clamp width: 2.625 inches

Tablet holder adjustable range: 8.625 – 15.5 inches

Gooseneck length: 15.7 inches

Weight: 3.85 lbs.

Sorry for the steep shipping costs, but this holder is very sturdy and quite heavy.