It's a set of blocks, similar to a rattle. I haven't put it in my mouth, but please understand. I've stored it at home with other stuffed animals, so please understand that it's a used item. The box is a little damaged, but I will fold it and ship it. [Quote Below] Let's line up the animals! Soft blocks filled with everything babies love. Soft fabric blocks perfect for a baby's first toy. Each block makes a sound, so you can play with them individually as rattles, or enjoy peek-a-boo and pretend play. Of course, you can also develop various senses through actions such as grasping and rolling, and safely and enjoyably promote your baby's growth.