Little Genius fruit knob puzzle is completely child-friendly, both mentally as well as physically. It's a uniquely crafted tray that has cavities into which the cut outs of different fruits can be placed. Even the fruit cut outs have knobs on them, making it easy for the child to handle. The tray also provides a stable base while your little one is playing. The material, out of which this tray for 2 year old has been made, is medium density fibre board which is quite safe as well.