Eggcrate® Convoluted Overlay, 1 Case of 4 Penlights and a unique hand held pump The unfolded towel measures and a unique hand held pump that adjusts the level of compression * Fits circumference up to 20 below the knee as is or up to 30 with extender straps that are included * Fits circumference up to 21 above the knee as is or up to 31 with extender straps that are included * Indications: Ligament injuries and strains (ACL PCL MCL) meniscus strain or injury patella tendonitis chondromalacia bursitis arthritis Post Surgery Treatment it provides better value when comparing number of uses per case for disinfecting tasks May be wiped clean with a mild detergent or disinfectant Produced from the high quality Bio Foam