The only two in one mobile that can be used in the crib and on the go. The friendly giraffe from the Discover n" Grow line holds the detachable wind up musical unit. Just wind it up and soothing music will play for baby for up to 2 1/2 minutes and no batteries needed. There are three plastic characters with soft details that gently spin over baby. Characters include a lion, monkey, and elephant. The base attaches easily to a variety of crib styles with a vinyl strap. The base unit has a full color highly detailed label. For the on the go play the mobile unit detaches from the giraffe armature and links to any stroller canopy.