HIGH-QUALITY MATERIALS: The shoe trees are made of plastic and stainless steel, providing strength and durability for long-lasting use. The coil spring spine ensures proper shoe fit and helps prevent cracking, chipping, or breaking. SPECIAL DESIGN: The shoe tree measures 8 x 32 x 32 cm. Connected by steel springs on both sides, it can expand to fit various shoe sizes, accommodating different types of footwear. PORTABLE: Lightweight and compact, the shoe stretcher is easy to carry and takes up minimal space. Ideal for home use, travel, and business trips. EASY TO USE AND MAINTAIN: Simply insert the shoe tree into your shoe for effective support. The smooth plastic surface is easy to clean and built for long-term reuse. MULTI-PURPOSE: Adjustable shoe trees are widely used to help restore and maintain the shape of soles and uppers, keeping your shoes in excellent condition. Suitable for athletic shoes, children's shoes, women's boots, high heels, and more.