Accessory for the Trekker Gait Trainer (M56425): Forearm Platform.Adjustable in both depth and height, this Forearm Platform can rotate and move to face up or downwards, and the multi adjustable hand grips can extend outwards for taller children as they can be adjusted to any angle. The armrest is contoured and comes with hand and wrist straps for security, to ensure correct positioning is maintained. The platform can be mounted anywhere on the handle bar, facing either inside or out. Height range from handlebar 51 - 178mm (2 - 7\"). Grip length: 89mm (3\").