AliMed Easy-On Knee Brace Adjustable extension/flexion stop with a range of 0° to 120 degree flexion in 7.5 degree increments and 0 degree to 75 degree extension in 7.5 degree increments. Helps maintain or restore ROM at rest or during functional activities. Adjust without tools. Simply rotate the cover to expose the stop pins and reposition them as required. Cushion cuffs are thick, self-padded washable fabric with hook-and-loop fasteners. All joints feature fully cushioned protectors. Bilateral uprights. Includes removable padded patellar strap. Fits left or right. Specify size when ordering. Sizing for Knee Brace: Measure circumference 6" above kneecap. Small fits 13" - 17"