With all mechanical movement and easy-to-follow assembly, this Ferris wheel music box kit from Rolife will make a wonderful new project for anyone who loves puzzles. Once assembled, this Ferris wheel abounds with charming details from darling wooden cabins to a lovely tune that plays as the wheel rotates. Details: 3.98" x 11.02" x 13.3" (10cm x 28.3cm x 33.8cm) assembled size Kit Design: TGN01 232 pieces 1.5 hour estimated assembly time Intermediate level All mechanical winding mechanism Music : Around the World in 80 Days Plywood and mechanical parts Easy-to-follow assembly For ages 14 and up