This is a 33mm CHONK D20 Sharp Edge Resin Die
 
Dark and mysterious, this d20 encapsulates the brilliance of a distant nebula, glowing with deep blues and purples. The iridescent swirls look like a fragment of the galaxy, trapped in dice form, ideal for those who prefer a cosmic touch to their game.

Each order is for a single 33mm d20. 
The smaller counterpart is for comparison only and not a part of this listing.