Kids & Children .75" tall shoe lifts insoles inserts fit age 6 years & Up boys and girls .75" (2cm) Height Increasing, Size: .75"x 2.2"x 5", One pair insole, Super Lightweight 2 ounces. Attention**Use for at least 2 Size Bigger Hi-Top Ankle Boots for extra space EVA Resin & Memory Foam: Soft and flexible, shock absorption. Kids & Children .75" Height Tall shoe lifts insoles inserts fit age 6 and Up boy and girls and required to use for at least 2 Size Bigger Hi-Top Ankle Boots. They are required to be used under the supervision of a guardian