Batman: Arkham Knight Batman, Arkham Knight, Harley Quinn, Scarecrow Pop! Vinyl Figures Set of 4 Based on the designs of the 4th installment of the Batman: Arkham video game series, the Batman is back in vinyl! Bruce Wayne is mored armored than ever and ready to take on his adversaries. The Batman: Arkham Knight Batman Pop! Vinyl Figure measures approximately 3 3/4-inches tall.