Thank you for viewing! Shipping will be via standard mail. Thank you for your understanding. These items are made by processing a rod created with a burner and cutting it into small pieces, then firing them in an electric kiln. These nuggets are made by mixing transparent blue and purple glass. Some nuggets have a stronger blue hue, while others have a stronger purple hue. We hope you appreciate this as part of their individual character. Some glass appears different under natural light and fluorescent light. Please refrain from purchasing if you are concerned about this. As these are glass, they may break upon strong impact. Since they are fired, some items may have marks on the back. Some items also have bubbles. Please check the size using the ruler in the second and third photos. The size is approximately 13mm to just under 14mm wide. The measurement is taken from the back of the nugget. Please feel free to ask any questions if you have any doubts or don't understand something. 1450 yen #glass #electric kiln #handmade #nugget