Tiddliwinks In the Pond musical mobile has a plush frog, turtle, snail and duck to keep your baby entertained. It plays Brahms' lullaby, which soothes your baby to sleep. The Tiddliwinks baby mobile has a blue fabric sleeve covered arm. The mobile needs to be wound up to operate. The baby musical mobile can be attached to most cribs with ease. This baby mobile matches the other items from the Tiddliwinks In the Pond collection.