Wishtime Newest Children's Educational Wonders Fun Musical Instrument for Any Age Toddler Glockenspiel Toys with Songbook To help everyone identify the notes, the keys are color coded and engraved The material is ABS plastic and iron plate with best quanlity. 18 month above kids can associate colors with different notes for easy composition The cartoon mouse part is smoothly, no sharp part. Tap or slide across 8 xylophone keys to create pleasent sounds.