Thank you for viewing! This set has variations in size. We apologize, but this item is not eligible for discounts and will be shipped via standard mail. We appreciate your understanding. These items are made by placing handmade parts one by one on thin rods created with a burner and then firing them in an electric kiln. Some glass appears different colors under natural light and fluorescent light. The parts are placed on top of the glass, so they are not perfectly round. Some of the glass originally has bubbles, and some nuggets have bubbles that did not collapse. Since they are made by connecting thin rods, some nuggets will have different colors on the back. Please refrain from purchasing if you are concerned about this. Each piece has a unique pattern, which takes considerable effort. The price is set accordingly. We appreciate your understanding. As these are made of glass, they may break with strong impact. Because they are fired, some items may have marks on the back or black spots. Some also have bubbles. Please check the size with the ruler in the second and third photos. The size is approximately 12mm to just under 11mm wide. The size is measured on the back of the nugget. If you have any questions or don't understand something, please feel free to ask. 1680 yen #glass #electric kiln #handmade #nugget