These are really great cups, made from tempered glass, which is less likely to shatter when dropped or exposed to a sudden change in temperature, and shatters into less sharp fragments.
I ordered a set a month ago for $29 and now they are only $23. The Amazon CSR gods saw fit to smile on me and refund the difference.
Only 1 set in stock for next-day delivery, but more are available for backorder.
Highly recommended for anyone who owns cats. We've switched out all our everyday glassware after multiple failures.
Mod Edit 1:15pm AEDT: Temporarily out of stock; available on back-order.
Are these good if you have cats ?