The world of POP! is getting bigger-and smaller-with Bitty POP! collectibles! Mix and match this Bitty POP! Bundle Pack with other expansion packs and your favorite Bitty POP! collectibles to construct your own unique Bitty City! Bitty POP! collectibles are packaged in hard acrylic display cases with detachable bottom lids. The detachable bottom lids double as acrylic bases, to which the Bitty POP! collectibles are adhered. Vinyl collectibles are approximately 0.9 to 2 in (2.3 to 5.1 cm) tall.