Unna Flex® Unna Boot, 3 Inch x 10 Yard, 1 Box of 12 Incontinence X Large * Fits knee circum Select Ear:Left Ear X Large * Fits knee circum 75 * Is designed to prevent hyperextension of the elbow * ROM Hinged Elbow features medial and lateral Range of Motion (ROM) hinges to provide stability * Hinges may be adjusted to limit extension at 0ß 15ß 30ß or 45ß settings * ROM hinges help control extension and rotation and provide exceptional support through postoperative rehabilitation * Criss crossing X hook and loop straps provide additional protection from hyperextension * Available in black * Contraindicated for the management of arterial and mixed venous arterial leg ulcers Flexible elastic Unna boot is not rigid like some Unna boots but works just as well