Our product is made of 3mm thick black mdf. size: 1.bird:17x15cm 2.bird:17x16cm 3.bird:17x10cm 4.bird:16x14cm. double-sided tape is sent next to the product. it should not be contacted with any liquid. it should be cleaned with a dry cloth only. you can contact us via the platform for your pre-sales and after-sales questions, comments and suggestions. your comments and ratings are important to us. please don't forget to reply back. thank you for choosing us to beautify and organize your living spaces with us. more than 100 stocks are available for sale at the campaign price. Improved version for clearer understanding and better search visibility. Suitable for users seeking detailed and reliable product information.