Thank you for viewing! These are glass nuggets. I've fired Moretti glass with millefiori on top. The bottom is flat. Please refer to the first photo for the size. 16 pieces. ⚠️Some of these items are not pairs, so they are listed as "slightly imperfect." These are handmade by an amateur, so 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. Fused glass Glass nuggets Glass cabochons Handmade Glass Accessory materials Stained glass 1200