Country of origin: China You can measure the size of your fingers just by rolling them up on your fingers and wearing them, so you can easily measure them yourself. When you purchase a ring from online sales, you can measure the ring size in advance and place an order, so the frequency of Re size will be reduced. It is easy to understand because it is displayed on the scale of No. 1 ~ No. 30 of the Japan standard. However, because it is a plastic material, there is a slight error compared to the metal ring gauge. Please note that it is a simple scale that measures the approximate size. It's @ 85 per piece (excluding tax), so it's a good novelty for customers. Delivery time: We will ship in about 3 days (business days) after the order is completed. Due to fluctuations in real-time inventory, it may be out of stock. Thank you for your understanding. If it is out of stock, we will contact you again with the delivery date.