Elastic Knee Stabilizer Beige X Large 16.5 18 Foam Mattresses Easy one touch operation * Compact Style:Right Ear Easy one touch operation * Compact and lightweight * One year battery and three year compressor warranty * Fast treatment time about 10 minutes * 45 minute battery life * The 4 hour battery charge time * Includes Compressor Unit Battery Reusable nebulizer with tubing Disposable nebulizer 5 replacement air filters and filter door Tubing adapter Adult and pediatric masks AC adapter DC car adapter Carrying case Instructional manual & DVD * 5 and under 5 18 (measurement taken just under the knee cap while knee is slightly bent) * Elastic Support for Prevention Treatment & Rehabilitation of the knee * Thermoskin elastics can expand contract and stretch and are made of a high grade durable material that permits a full range of movement and are comfortable to wear during a range of activities * Anatomically designed the elastic support will comfortably contour to the shape of your knee * It provides even compression and support to weakened and injured knees * It has side stabilizers to provide increased medial and laterial support X Large * Fits knee circum