Office Furniture Design Ac106sd Armrest by Guangzhou Pure Faith Technology Co., Ltd. Ac106sd is an adjustable armrest designed for ergonomic office chairs. The armrest combines an arc joint and a ratchet system to widen the range of adjustment. The pad moves 45mm horizontally and swivels 360 degrees, the arc joint allows an 18 degree flip and a 216 degree swivel, and the holder provides 100mm of vertical movement. A locking structure keeps the armrest stable after each adjustment. The shell is made of recycled materials including tires and ocean plastic waste, while the ratchets and the joint are made of titanium alloy.