Stained glass sheet glass. Details are unknown. There are also images with light shining through, so please check the photos. The size can be confirmed with the ruler in the image, so please check it yourself. I would be troubled if you gave a bad rating after purchase because the size was different. Please note that there may be magic marker writing, scratches, and tape attached. Approximately 162 grams, thickness 3.5 mm Please use it for making small items. Items that have been listed for two weeks will be cut and sold as scraps, so please purchase any glass you like as soon as possible. Shipping will be via Click Post. We will pack it carefully, but there is a possibility of breakage during transportation. Especially when purchasing multiple items, they will be packed together, making them more prone to breakage. We do not offer any guarantee for breakage. If you wish to have it shipped as fragile, we will change to Takkyubin (courier service) and add shipping costs, so please contact us before purchasing. Please note that we will use recycled materials such as newspapers and cardboard for packaging. We will pack the item upon payment completion, so we cannot accept requests for combined shipping or changes after that. The limit for combined shipping is 3 sheets (or 4 sheets if they are small) per package. Discounts will be applied from the second sheet per package. We have set the shipping time to 4-6 days, but we will ship as soon as it is ready. If the weight is within 1 kg including packaging materials, we will ship via Click Post, and if it is within 2 kg, we will ship via Yu-Packet Post.