Pressure Management Mattress Armboard for EUR Side Rail has locks by gravity to table side rail. Pressure Management Mattress Armboard for EUR Side Rail. Key Benefits Electrically Conductive: It is electrically conductive foam pad. Velcra Arm: The product is supplied with a Velcro arm restraint strap and stainless steel frame. Automatic Adjustment: Adjusts 180 degrees horizontally. Measurements: Size of the pad comes in following measurements such as 603 mm (L) x 150 mm (W) and 50 mm (H).