Purchase Notes: 1. The two logistics of Yanwen Economic Air Mail and China Post Ordinary Small Packet Plus do not have tracking information, so there is no time limit. We recommend using China Post Registered Air Mail or AliExpress Standard Shipping. 2. We do not accept refunds for minor damage (pin bending, slight screen abrasion,etc.)during the transit of the material, without affecting normal use. If you mind,please do not buy. 3. Some products provide technical support, if you need help, please contact us, we will handle your message the first time. 4. If you have any questions about the product, please contact us before you open a dispute. We will give you the most satisfactory answer. 5. We provide each customer with good quality products, very favorable prices and the most sincere service. We hope to get your good feedback. Wish you a pleasant shopping! Packing list ： 1lot=2pcs Hot bed leveler