The Xmas Tree! A bottle drainer and washer all in one.
They call it a washer but's really a steriliser, for a squirt of steriliser after the bottles have been washed
The bottle drainer is obvious, you just put the bottles on the spikey bits upside down and they drain...
The bottle washer is the bit on the top.
It's a pump in a goldfish bowl, you put the bottle on and push it down and it squirts a jet of liquid into the bottle.
So, you wash and clean the bottles, then squirt the final "no rinse" steriliser into the bottle and drain...That way there's no contaminants from tap water left in the bottle.
No rinse sterilsers are Sodium Metabislphite, Star San or Chemipro Oxi, your choice on that one! They're all on the steriliser page.