It is made of stainless steelThe ring is 4mm in diameter and durableTotal length: about 6.2 cm (2.4 inches), diameter: about 3.2 cm (1.3 inches)Weight: About 150gDistribution of cotton rope 4 meters color clothPackage: 1 pcs （Distribution of cotton rope 4 meters color cloth）Note:1): Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures.2): The size Weight of the product is measured manually, there will be a certain error, please understand.3): Because the factory batch is different, so there may be a small difference, please refer to the goods actually receivedHope you can understand.Thank you! We also have many other charm jewelry, (bracelets, necklaces, rings, earring, pendants,anklets), titanium alloy tools (titanium alloy pens, outdoor tools, pure Titanium products) and Carbon fiber pen,Carbon fiber insoles and brass collectibles (brass animal statues, brass pens) etc., you can find in my store! You can contact me if you need anything! make great gifts for family and friends who will love them!