Feature: 1. After putting the shoe stretcher into the shoe, the lever can be adjusted to the required support size to expand the shoe to a perfect fit. 2. Suitable for left foot shoes or right foot shoes. Solve the problems of shoe squeezing and rubbing feet, and can effectively support tight‑fitting shoes. 3. Internal all‑metal middle frame design, sturdy and durable. High quality material, firm and wear‑resistant. 4. Ergonomic design, easy to put in the shoe, flexible adjustment, keep the shoes in good condition. 5. Suitable for mid-top shoes, high-top shoes and boots with laces or zippers, suitable shoes for men and women. Specification: Condition: 100% Brand New Item Type: Shoe Stretcher Material: ABS+Alloy Application: Suitable for mid-to-high shoes and boots with laces or zippers Size Chart: Size Length before Stretching Length after StretchingWidth before Stretching Width after Stretching HeightSuitable Shoe Size S 23cm / 9.1in 27cm / 10.6in 8cm / 3.1in 10cm / 3.9in 15cm / 5.9in 34‑38 M 24.5cm / 9.6in 28.5cm / 11.2in 8.5cm / 3.3in 10.5cm / 4.1in 15cm / 5.9in 39‑41 L 26.5cm / 10.4in 30cm / 11.8in 9cm / 3.5in 11cm / 4.3in 15cm / 5.9in 42‑46. Package List: 1 x Shoe Stretcher Note: Please allow 1‑2cm error due to manual measurement. Thanks for your understanding.