JoJo Designs Polka Dot Ladybug Musical Mobile Now you can lull your baby to sleep peacefully while listening to the soft and soothing Brahms Lullaby that plays on the JoJo Designs Polka Dot Ladybug Musical Mobile. This toy is designed to fit most standard cribs. It's made with 100% cotton fabric that's soft and easy to clean. Features Includes Canopy with hanging toys Arm sleeve cover Music box 75 in. wide. Non-standard crib rails may be wider than 2.75 in. and may not work with these mobile frames.