These are glass nuggets. They are made by firing high-quality Fremont glass. The bottom is flat. Please refer to the photos for the size. 14 pieces * High-grade Fremont glass is used. The glass has beautiful colors ✨ ⚠️ The glass has been lightly fired, so some edges may be sharp. If you are concerned, please use sandpaper to smooth them. As these are handmade by an amateur, there may be some irregularities. Please refrain from purchasing if you are looking for perfection. The color may appear different depending on the lighting and how the light hits it. Please understand. If you purchase multiple items, we will discount 100 yen from the second item onwards. Thank you. Fusing glass Glass nugget Glass cabochon Handmade Glass Stained glass Accessory materials Earrings, rings, necklace materials 1200→1100→980