Tile Round 1 x 1 with King Boo, Crown print

Reference

98138pr0446

BrickLink® #

98138pb462

Tile Round 1 x 1 with King Boo, Crown print (part 98138pr0446) is a LEGO element. CollectORbuild's catalog records it in 1 set, including Mario Kart – Wario & King Boo.