... short lead time 4. eco-friendly paper & ink Book with music instruments:Board book printingPaper material:White cardboard, grey back cardboard ... foam, plastic tray, sponge, PVC/PET/PP window, discs, small toys like crayons, markers, garland paper, watercolors, glues, pen, pencils, ... a very good tool to cultivate children's interests of music. With colorful pictures and cute electronic piano, it will ...