This is a high quality Jingdezhen porcelain cup! Heavy in the hand, smooth feel and grip, thick-walled but semi-transparent to light and color.
I have used these cups myself for a couple of years and because of the relatively high price I decided not to offer them my customers, but after gifting several to customers and getting "demands" for more, we decided to offer them to everyone.
These are made of the same material by the same company as these: Jingdezhen Porcelain "Ribbed" Cup in Gift Box * 60ml
Volume: 70ml (+/- 3ml)
Each Cup is roughly 80 grams (weight without gift box)
Each comes in it's own gift box.