Dukal™ Sterile Gauze Sponge, 4 x 4 Inch, 1 Case of 1200 Cautery Tips Size: 14 x 13 x Select Ear:Right Ear Size: 14 x 13 x 4 * Color: black * High quality memory foam contoured for maximum comfort and support * Features a hypoallergenic breathable mesh fabric cover that helps to prevent heat and moisture build up * Can be placed anywhere along the back of a chair for neck upper middle thoracic or lower back and spine pain relief * Ergonomic design helps to relieve and alleviate both acute and chronic pain from: back aches muscle aches arthritis stenosis herniated disks and general sore backs * Can be used in the home office car airplane wheelchair recliner or anywhere extra lumbar comfort and support is needed * Position the backrest into desired position and prevent slippage using the dual adjustable straps * Cover is removable 31 day open vial stability 100% woven cotton to accommodate a range of applications 4 x 4 inches