Short -Tall Knob PuzzleShort Tall Knob Puzzle is great for young children to learn about sizes and hand eye coordination with this 6 piece puzzle. Suitable age 18+ months. Children can better understand the differences in size thanks to the gradient colours, which go lighter to darker as the pieces increase in height. This visual cue supports early size recognition in a fun and engaging way. Made from plantation timber using non toxic and child safe materials, this puzzle