These are surgical stainless steel jump rings, so they are high quality and resistant to discoloration. Surgical stainless steel is less likely to cause metal allergies and is a highly regarded material. (Individual differences apply) They can be used for a wide range of items, such as earrings, piercings, and necklaces. These are thick jump rings and are sturdy. Price is for 20 pieces. Size: 1.2 x 7mm The actual color may differ slightly from the image due to the environment and settings of your PC monitor. As these are imported products, there may be slight imperfections such as warping or uneven paint. Please understand this before purchasing. I have other items for sale as well. I offer a discount for multiple purchases, so please take a look. 50 yen off from the second item If you have any questions, please feel free to comment. Instant purchase OK #ThickJumpRings