Yamaha grand and upright pianos are now available as 3D puzzles! The 3D puzzle, which can be assembled by removing parts from cardboard, includes puzzles of five composers and study cards related to them as learning materials. The study cards include an introduction to the piano, an overview of the composers, and sheet music of their representative pieces. It can be used in a variety of ways, including as a personal hobby, as a gift, or as a promotional item in a store or for business! Specification: Black Yamaha grand piano (CFX): A4-size cardboard x2 (Assembled size: 16cm x 28cm x 20cm); White Yamaha upright piano: A4-size cardboard x2 (Assembled size: 15cm x 5.5cm x 12cm); Five composers of Schubert, Tchaikovsky, Chopin, Bach, and Beethoven: A4-size cardboard x5 (Assembled size: 8 cm x 4.5 cm x 10.5 cm); Study cards: A5-size card x6 ; Instruction Sheet; All in A4-size box. Approximate assembly time: 2 hours.