Encourage eye tracking and sound perception skills with the Dr. Seuss Oh, the Places Youll Go! Musical Mobile by Trend Lab. Four plush hot air balloons are suspended from white felt clouds to slowly rotate to Brahms Lullaby music. Mobile easily attaches to most cribs and measures approximately 24 inches tall by 17 inches wide. This mobile coordinates with the Dr. Seuss Oh, the Places Youll Go! collection by Trend Lab sold separately.