Material:natural druzy quartz crystal agate rectangle connectors Size:These druzy crystal agates are 10x45mm.random 5 pieces Usage:They can be matched with hooks, jumprings, and pins to be necklaces, bracelets, earrings and so on. Note: Natural gemstone comes from mineral. Due to the naturality,cutting or polishing also makes every piece of gemstone vary in color and size. Service:Please feel free to contact us if you have any question or you want connector of two different color.