Country of origin: China
Dimensions: 70mm Long, 40mm diameter
Stem: Hollow tube with a ball valve
Measuring Lines: no
Cost (RRP): Unknown (Can buy from around $8 USD)
Been around since: Unknown (2014?)
Unique Design?: Yes (This cup design appears to have been created by this brand but appears to have been rebranded by other brands)
Other Details: The stem is a hollow tube with an opening on the end – this allows the cup to be emptied while still inserted. A ball acts as a stopper to close the tube while in use, and can be moved further up the stem (into the larger portion) to allow the cup to drain. I was told that Howard Peng from Honserve Trading developed this cup, and he asked me to only link to his listings. However there seems to be no listings from that company any more, so I’ll link to an AliExpress search instead. Also please note that there are a lot of different cups using the “Bassrose” box and name – but the original “Bassrose” cup is this cup design with the ball-valve stem (which was also known briefly as a “Dilan” cup in some AliExpress listings).
The same sort of concept of Victoria Love, but this one has the hole to empty the cup on the bottom of the stem (unlike VL which has the holes on the side of the bottom of the stem).