Function: Prevent painful blisters and stop wearing shoes that hurt. Turn tight boots into fitting and comfortable boots. (Suitable for regular boots). Durable construction: Made of durable polyurethane plastic and premium steel shaft, more durable than wooden ones. These outstanding shoe stretchers can be used for many years to come. .Metal handle: The metal handle is electroplated and rust-proof, smooth and sturdy, easy to use and it will last longer. .Free packing: We also give away a set of packing that can be used to further increase the upper. Allows you to stretch very small areas of your boots, so you can focus on painful pressure points. .2-pack: The package includes a pair of shoe stretchers. Simply insert them into your boots and then turn the knob clockwise to start stretching your boots. Leave the shoe stretchers in overnight or for 24-48 hours. The longer the shoe stretcher is inside, the more your shoes will stretch. .About shipping: All items will be shipped within 3 business days after payment is received. Most of the time you will receive them within 8-12 days. The specific delivery time depends on the circumstances. If you have any questions, please feel free to contact us. During the shopping process, if you have any questions, please feel free to contact us, we will reply to you within 24 hours, wish you a happy shopping. Thank you for your cooperation and we will make sure you feel satisfied.