This product comes in a size of 5"x9", and is 1/4" thick of ULTRAGEL® on the front side and soft, hook-sensitive fabric on the back. The fabric provides a convenient and easy attachment/detachment surface for Velcro-type hook-only fasteners. Each kit includes: Two loop-backed gel pads and four adhesive-backed hook material pads. RETACH™ ULTRALOOP™-Backed Gel Pads Kits are best used as removable, repositionable or re-attachable gel pads or gel cushioning for any hard surfaces. To provide easily removable and reusable pressure-relieving gel wraps or gel pads. To customize large area gel cushioning needs or die-cut discrete customized gel pads and gel sheets for easily attachable and repositionalble pressure-relieving gel pads. Durable, long-lasting, and low-profile.