This Armboard with it´s one hand operated balljoint release is identical too but it has a rotatable clamp with “hook on” function (e.g. for “beach chair” position).
Lenght: 605 mm, Post 140 mm
Recommended Cushions are:
Flat, moulded polyurethane foam
U-shaped, moulded polyurethane foam
U-shaped medisoft comfort cushion
U-shaped medisoft comfort cushion, Extra high (70 mm)
Length - 605mm
Height - 22cm
Width - 18cm
Weight - 4,3kg
Material - Aluminum, Brass