Color Variation: Due to lighting, display differences, and individual color perception, a small number of items may have a slight color variation from the photos. The final color will be based on the actual product. Quality: We strictly control quality, but as these are small accessories, please allow for up to 1% defective items. Size: All measurements are taken by hand, so there might be a 0.5 cm error. Please consider this before purchasing if you cannot accept such variations. Quantity: Due to the small size of the accessories, there might be a 1-2 piece variation (either more or less). This is normal, and we appreciate your understanding. Shipping: Orders are shipped within 12 hours. Delivery within the United States typically takes 7-9 days. Please note that delivery may be delayed due to customs policies. Thank you for your patience. Free Shipping: Enjoy free shipping on orders over $35. Purchase: Sold by the pack, with 50 pieces per pack. For example: If you choose "20mm" and a quantity of 1 (50 pieces), it will be $1.50. If you choose "20mm" and a quantity of 2 (100 pieces), it will be $3.00.