Universal Shoe Insole Length Measuring Tool

This is a simple and practical tool designed to measure the exact internal length of a shoe.
Just slide the white scale inside the shoe and push it forward until it touches the front.
The black guide locks the measurement so you can easily read the correct insole length in centimeters.

It’s perfect for:

• checking if shoes match their declared size,
• comparing different brands,
• measuring kids’ shoes to track growth,
• quick verification before buying or selling footwear.

The scale covers sizes 17–30 cm, which makes it universal for most children’s and smaller adult shoes.

The model prints easily and requires no supports.