Skil-Care Heels-Off elevates the legs to relax the spine and prevents leg and lower back pain. It is designed to off-load the heels of both legs simultaneously to prevent pressure sores. Heels Off can also aid in the healing of existing pressure ulcers. Select between the standard Heels Off or Heels Off with gel. The Gel Heels Off has a surface layer of gel to provide enhanced pressure relief and therapeutic cooling for the lower leg.