1. Although all photos are from actual products, there may still be chromatic aberration between the photos and the actual product.2. All product sizes are measured manually, and the actual product you receive may have an error of 1-3 mm. 3. The weight shown in the photo is based on a random sample and may have some effect on the actual product you receive. 4. For all free shipping products, we will select the most suitable shipping agent to express the order, and the displayed shipping agent may not necessarily be used for transportation. 5. When you find any problems with the goods. For purchase and sale purposes, please contact the seller immediately after receiving the goods.   Research&Development Our R&D team keeps developing new items for customers. All over the word to ensure that we keep the follow of new hot selling point. If you have any questions or suggestions, please do not hesitate to contact us for further assistance. ·New product development ·Features of the different market