Single Piece: The shoe insoles plantar fasciitis fits either shoe and can be flipped to fit the right or left shoe. Please measure your original removable insoles to ensure you are ordering the correct size carbon fiber insoles for men and give maybe ¼ - ½ inch space so you can easily slip them in and out of your shoes. (1 Piece). Premium Material: This carbon fiber sole inserts is 1.5mm thick and lightweight, durable, and corrosion-free. Good stiff support and great stability for your feet, can flex some and return to its original shape. An excellent choice for foot pain sufferers. Recovery: Due to a broken foot, my doctor recommended that the carbon inserts keep my foot flat so I would not further injure my foot which was healing. The purpose of this rigid plate is to add stiffness to shoes to limit foot motion and to take pressure off from metatarsals. and can be used to treat Turf Toe, Morton's Toe, Toe Joint Pain, Hallux Limitus, Hallux Rigidus, Plantar Fasciitis, Bunion, Big Toe Pain, Charcot Foot and Foot Surgery. Pain Relief: I needed it for osteoarthritis in my foot. As a carbon fiber insert in my shoes enough to keep toes from over-extending, without restricting or changing your natural stride. Turf toe relief insole still allowed some movement but reduced pain from too much movement. The rigid toe plate can be used in different athletic shoes like sneakers, hiking boots, baseball, tennis, golf, football, or basketball shoes. Not for dress shoes and high heels. Stability Design: Morton's toe is born with. As described in pic 2, the primary weight falls on the second toe, which can cause instability in the foot which can result in a more overpronated gait. This requires the additional rigid support of the Morton's Toe Plate rigid insole, which places the primary weight on the big toe, forming a triangle of stability with the fifth metatarsal and heel to reduce pressure on the foot and improve forefoot pain caused by the second toe.Best Sellers Rank: See Top 100 in Health & Household. Material: Carbon Fiber. Use for: Foot. Product Benefits: Foot Pain. Color: 1 Piece Black. Brand: Imonujo. Country of Origin: China. : B0BQ2YFZY6. Manufacturer: imonujo. Date First Available: December 21, 2022. Item model number: 1 PC Carbon Fiber Flat Insole. Product Dimensions: 8.5 x 2.4 x 0.05 inches; 1.45 Ounces.