Feature 1.There are some celsius number on the ring,they are appears on the ring according to the temperature of the finger, it is very funny 2.Wear it on your finger for 20-30 seconds with different colored Numbers in the middle of the ring 3.The inner arc of the ring is smooth and comfortable to wear 4.Comfortable, smooth and definitely safe even for sensitive skin 5.Size 9, 10, 11, 12, 13, 5 different colors as you choose Specifications Product Name:Waterproof Temperature Sense Ring Color:As shown in the pictures Material:Titanium Steel Width:About 0.8cm Style:Korean Fashion Feature 1:Temperature Measurement Feature 2:Comfortable Note The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. Package Included Waterproof Temperature Sense Ring There are some celsius number on the ring,they are appears on the ring according to the temperature of the finger,it's very funny Top quality & real tungsten ring Heavy and Durable and comfort fit, Perfect for Daily and Gift King Will's jewelry box, save your giftwrap service fee, and help you store the ring much safer & longer