This item is manufactured with top-class material for durable and long-lasting use. It's non-toxic, washable and transferable with medical silicone between footwear. U-shape design helps correct alignment of the foot. It also help walking easier and comfortable, instant relief of heel spur pains. Features - Color: As Shown. - Material: Gel. - Size L: Approx. 10 x 6 x 0.6 cm. - Gel and Fabric Heel Grips keep your heels from slipping out of your shoes and prevent blisters caused by abrasion. - Medical-grade heel Pads absorb forces that aggravate heel pain and put an extra load on joints. - Hand wash with mild soap and water, air dry. - Instant relief of pain from plantar fasciitis, heel, knee, ankle and back.