Thank you for viewing. This is a set of Basel tumblers from Toyo-Sasaki Glass. The base is stable. They have a moderate thickness and are easy to wash. There are 12 glasses in total, 6 sets of 2. Capacity: 335ml Made in Japan Dishwasher safe These are unused items that have been stored, but the boxes have some minor dents. We appreciate your understanding and look forward to your purchase.