Aurafix Metatarsal Arch Support (Adhesive) 800 AURAFIX footstool (adhesive) is made of silicone and is covered with a textile cover. It is placed on the lower part of the head of the metatarsal bone, to relieve pressure on this area and thus reduce pain. With the stability property inside the shoe, due to its sticky nature. Uses - bent thumb - claw thumb - Morton's foot. Freiberg's disease - Osteochondrosis. Instep pain - Sensitive metatarsal bone head. Calcifications below the instep. Size - Small - (34 - 39) Medium - (40 - 45