8mm 10mm 12mm 14mm 16mm 18mm 8mm 10mm 12mm 14mm 16mm 18mm 【Size】: 21cm-22cm in length, 8mm/10mm/12mm/14mm/16mm/18mm in width Warm reminder: There may be some errors in product dimensions due to manual measurement. If you have special requirements, please contact customer service 【Explanation】 All products can be ordered according to the quantity above. We have indicated the weight of each item in mixed batch Alipay transactions. The shipping fee system will automatically calculate during purchase, which may have slight errors. If you have any questions, please contact customer service promptly. 【Long-term Recruiting Merchant】 Our company is sincerely recruiting long-term online sellers and business partners. We provide you with comprehensive services including stable quantity real-time inquiries, selectable Chinese or English descriptions and images (material size introductions, main images, actual product images, detailed images, etc.), monthly updates of new products, OEM services, and more. Please contact our online customer service for details 【Shipping and】 Shipping Time: Generally, if you place an order and make payment by 16:00 on the same day, we will try our best to arrange for dispatch on that day.For payments made after 16:00, we will arrange dispatch the next day. Note: If there are any special circumstances, the agreed upon time between both parties will prevail. Method: Our company uses ZTO, STO, Lianhaotong, and other regular services. You can choose between express delivery and EMS. Please confirm the specific shipping cost with customer service. Customer service online hours: Monday to Sunday: 8:30-24:00. Closed on statutory holidays. [Out of Stock] Due to the constant increase in product styles, some styles become too popular or are still in production at the factory, which may lead to temporary unavailability.If some products are out of stock after placing an order, we will contact customers online as soon as possible. If we cannot reach them or respond promptly, we will proceed as follows: for each out-of-stock item with less than five units remaining, we will ship it out promptly to ensure timely delivery to you. Once you receive the goods, we will refund the corresponding amount for the out-of-stock items.If there is a large shortage, we will wait for your decision before making arrangements (usually you can choose to continue waiting or have some items shipped first). 【Product Returns and Exchanges】 If there are any issues with the product quality, please contact us promptly within 24 hours of receiving the goods. Although we manually inspect each shipment (sorting, packaging inspection, QC), it's impossible to check 100%. Some styles inevitably have inherent quality issues, so if there are any quality problems, please contact us first for clarification. After several restocks, any remaining problematic items will be sent back to us for replacement at once. We guarantee that any defective items within 45 days of receipt will receive an exchange service. So there's no need to worry that we won't replace it for you after a long time; as long as it's not more than 45 days. There's no need to rush to replace an item with a minor issue upon receiving it; that would be a huge waste of shipping costs and time for both parties.