Silicone Heel Cup absorb shock to help relieve and prevent heel pain. Ideal for bursitis, Achilles tendonitis, fat pad atrophy, and plantar fasciitis. Help protect the calcaneus and all associated skeletal structures (knees, hips, and spinal column) from the destructive forces of shock. The large, soft blue “dot” and center posting provide additional cushioning and take pressure off painful areas. Breathable, hypoallergenic. Low-profile — use in dress or athletic shoes. Universal left and right.