15.7mm DIA (See other models for different sizes)
For all of those 'Chappelle show' lovers out there - who can forget the Charlie Murphy's True Hollywood Stories - Rick James episode - UNITY! Well, now you can imprint Unity on someones forehead (not advised!) too. Made to order from Shapeways, buy it now!
This is a replica design.
PM me if you need a size not listed in this store.