From Tiki Farm:

"Boo! is an interesting little trick or treater. We're not sure how well he can walk from door to door with those tentacles peeking out beneath his bed sheet disguise, but you better have some candy ready should he slither-up to your door.

Boo! stands 6.5 inches high and holds 17 oz.

Boo! is a member of The Trick or Treater Terrifying Trio! Featuring a classic Sea Creature (disguised as a ghost) mug, 'Boo!', a Frankenstein mug, aka 'Lil’ Frankie', and that dapper Wolfman, aka 'Wolfie', some of the most Halloween-ish Pop Culture monster bases are covered with this set, a set that is sure to be the hit of any Halloween Mad Monster Party!"