Product selling point: 4 rings can be stacked together for use, buckle design, inner diameter 2cm Packing list: Ring * 4 Product Material: TPE Note: 1. We will ship your watch within 1-2 working days after we confirm your payment. 2. If you need to change your shipping address information, please notify me of your updated address within 1-2 days after payment; otherwise, we will ship to your original address, please make sure the address is correct. 3. Sometimes due to bad weather, logistics takes a long time, resulting in longer clearance time. So please be patient when you do not receive your goods on time. If you do not receive the goods within 30 days, please contact us and we will help you track your order parcel logistics information in time. 4、Please charge the device before use when it received. 1-2 hours when you receive it. it was run out of power after the long delivery. Thank you! 5、Before using the product, please read the manual carefully. If the product cannot be used normally, please do not open the dispute directly,You can contact us first, and we will send you the complete operation video.