Thank you for viewing. This set is not a pair. There are variations in size. Reason for being slightly defective: These are not natural sea glass. They are machine-cut, so some may have incomplete cutting or black spots. Please refrain from purchasing if you are concerned. Glass rods were thinly processed, cut, and fired in an electric kiln. They are cut with a glass cutter, so some nuggets may have cut marks, black spots, or roughness. Nuggets with different colors on the back are also mixed in. Please refrain from purchasing if you are concerned. Some glass appears to have different colors under natural light and fluorescent light. As these are glass, they may break with strong impact. Please check the size with the ruler in the second and third photos. The size is approximately 4mm or 5mm wide. The back of the nuggets is measured, so the size is indicated as slightly smaller. We are very sorry, but we will ship via regular mail. We would appreciate your understanding. If you have any questions or don't understand anything, please feel free to ask. 1499 yen #glass #electric kiln #handmade #nugget #earrings #herbarium #sea glass art