1. Function: Prevent the pain of blisters caused by rubbing and avoid wearing shoes that hurt your feet. Transform tight boots into comfortable and well - fitting ones. (Suitable for ordinary boots) 2. Durable: Made of tough polyurethane plastic and high - quality steel shafts, these shoe stretchers are more durable than wooden ones. These excellent shoe stretchers can last for many years. 3. Metal handle: The metal handle is electroplated, rust - resistant, smooth and strong. It is easy to use and has a longer service life. 4. Free shims: We also give away a set of shims, which can be used to further stretch the upper of the boots. This allows you to stretch a very small area of the boots and precisely solve the problem of foot - rubbing. 5. Packed in pairs: The package contains a pair of shoe stretchers. Just insert them into the boots and then turn the knob clockwise to start stretching the boots. Leave the shoe stretchers in the boots overnight or for 24 - 48 hours. The longer the shoe stretchers are left in, the more the shoes will be stretched. 6. About shipping: All products will be shipped within 3 business days after receiving the payment. In most cases, you will receive the products within 8 - 12 days. The specific delivery time depends on the actual situation. If you have any questions, please feel free to contact us. During the shopping process, if you have any questions, please feel free to consult us. We will reply to you within 24 hours. Have a pleasant shopping! Thank you for your cooperation. We will make you satisfied.