This arch support in a heart shape corrects lowered metatarsal arch. It is not self-adhesive - you can use it in different shoes. Use barefoot, put in on a footpalm on the area where are the heads of metacarpal bonelets and put elastic cover over your foot. Use nylon stocking, sock, brace or plaster for a better fixation on the foot. It can be washed with warm water. After drying apply body powder. It is made of elastic, soft and moisturizing silicone gel.