The Lateral Knee closed cell foam block has been specially designed to accommodate an imaging plate. The block is shaped to fit the natural angulation of the knee joint and provides the patient some support during a HBL lateral knee x-ray.The closed cell foam is easily wiped clean, has a non-slip surface and will not absorb any fluids.Foam: Lateral Knee Block 36x30x10cm- with 15mm Slot- Closed