This necklace features a fun and colorful optical illusion! The pendant is black, measures a nice sized 1.25" (30mm) with an image printed on glossy photo paper and sealed with a glass dome. Includes a matching 24" ball chain. Listing is for first photo. Other photos are for size comparison and dimension only. Not suitable for children. Can pose a choking hazard. Not waterproof! Please remove before bathing, showering or swimming.