Material: PP (Polypropylene) Pair of solid black boot shapers, made with sturdy materials and a flexible frame for long-term use Easy and convenient to use, slip inside your boots to maintain their form and shape, keeping them in an upright position after each wear; ideal for storage and display Helps prevent cracks and creases, allows air circulation for natural drying of moisture, and extends the life of boots Available in multiple sizes and heights, suitable for ankle, calf, and knee-high boots for both men and women Size Chart: 8in: Height: 24cm (9.4in), Underside Width: 18cm (7.1in) 12in: Height: 32cm (12.6in), Underside Width: 20cm (7.9in) 16in: Height: 39cm (15.4in), Underside Width: 20cm (7.9in) Package Includes: 2 Pieces Boot Shaper Inserts Note: 1. Due to lighting and display settings, slight color variations may occur. 2. Measurements are taken manually; please allow 2-3cm variance from the size chart.