I kept this at home unused after purchasing it. It's made of sturdy, thick glass. There are areas that look like scratches on the top, but they were there from the beginning and are not cracks. (About 2cm wide, 3 places, last 2 photos) They are barely noticeable unless you look closely. I purchased this here: www.amazon.co.jp/dp/B004D2EEXU Brand: Luminarc Color: Clear Material: Glass Outer dimensions: Plate: φ320mm, Cover: φ270mm, Height: 115mm Inner dimensions: φ258mm, Height: 95mm Material: Glass Product weight: 2.42kg I will ship using recycled packing materials.