From Funko. Entertainment Earth Exclusive! You're in trouble now, Demons, because Tengen Uzui has released a powerful ally to help save the day. Musclebound Muscle Mouse is geared up and ready for action! This Demon Slayer Muscle Mouse Pop! Vinyl Figure #1536 - Entertainment Earth Exclusive measures approximately 4 1/4-inches tall and comes in window-box packaging. Are you ready to flex your purchasing power and expand your Funko Pop! collection? Order this limited edition exclusive today, before you miss out!" .