Glass salad/dessert bowls (Midtown Toronto)

I have five in total, the top one in the pic is slightly heavier while all the other four are identical. No chips scratches or cracks. I think these are designed for salad or dessert, they also make good plant pot holders. Don't know if they are dishwasher or microwave safe as there are no markings on the bowls - they are new/never used and been in storage so haven't been tested.

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