Product Description Knee Board 3-Fold (Black) This is an original knee board designed for ease of use. It's a knee board full of ideas, designed with pilots who carry a lot of documents in mind. The color is black. Dimensions: Height 24.5cm, Width 17.5cm Features: Holding system for easy document retrieval Robust construction with two aluminum alloy plates. The D-ring on the center board has been upgraded. The center link board and binder board are interchangeable. Can be adapted for left or right seat by swapping the board and pencil holder. Stable hold with V-belt and Velcro, without feeling constricting. Prevents flapping with a rubber belt, can also be used as a divider.