Plastic parts to adjust shoe height, with two-stage size adjustment. - Product Name: Shoe Height Adjustment Parts - Color: Black Thank you for viewing. These insoles claim to increase height by a total of 3.5 cm. For those around 20 cm tall. Insoles Theme park Height restriction Anonymous delivery Used once for a short time Thank you. Insoles, shock absorption, heel only, sole pain, cushion insoles, secret insoles, silicone, low-rebound cushion, 2cm + 1.5cm, for children, men, women, insoles, shock absorption, shock absorption, gel insoles, gel insoles, size adjustable, y4 Theme park Roller coaster Height restriction I think this might allow you to adjust for height restrictions at places like USJ.