I've cut scrap stained glass pieces to approximately 3.5 x 4.5 cm (inside/outside dimensions). How about giving them a try? I don't know the specifics of each individual glass piece. 10 pieces Please use them for crafting small items. I've set the shipping time to 4-6 days, but I ship as soon as I'm ready. Shipping will be via Click Post. I will pack carefully, but there is a possibility of breakage during shipping. Especially when purchasing multiple items, they will be stacked and become more prone to breaking. There is no guarantee for breakage, so if you prefer fragile handling, I will change to Takkyubin (home delivery service) and add shipping costs. Please contact me before purchasing. Please note that I will use recycled materials such as newspapers and cardboard for packaging. I will pack the items upon payment completion, so I cannot accept requests for combined shipping or changes afterward. For combined shipping, the limit is 3 pieces (or 4 if they are small) per package. Discounts will be applied from the second package onwards.