The larger ones were popular but sold out fast.
This 250ml size is more suitable for coffee. Normally $25/pair.
Or get 8 for $45, no prime needed : https://www.amazon.com.au/gp/product/B0756C9JZ1
Keep hot drinks hot and cold drinks cold
Feature two walls of borosilicate glass
Creating a highly effective layer of insulation
Silicone valve at base allows for changes in pressure
Perfect for serving ice cream and soups
(larger ones an hour ago: https://www.ozbargain.com.au/node/574141 )