1. It can be used in all seasons, no shoes are left idle. Whether it is winter snow boots or summer thin socks, it can be dried easily.2. The shoe dryer is mini, which can be deeply placed in the shoes, the heat is faster and more uniform, and the toe that are difficult to dry can also be dried.3. The built-in violet light and PTC heating elements can destroy the living environment of microorganisms through high temperature and drying, take the odor and inhibit the growth of microorganisms.4. If you have any questions about the product, you can contact our customer service to solve.1. Product name: Quick Drying shoe dryers2. Product material: ABS+PC3. Working voltage: USB 5VColour:blueSize:16.5 x 6 x 2cmPackage Contents:1 pair x shoes dryer1 x USB cableOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.