Spinning Tops

SPINNING TOPS BUILD FINE MOTOR SKILLS:
Tops are a common tool for improving fine motor skills. When you spin a tip, you are challenging and building in-hand manipulation skills. When spinning a top, a child is required to rotate the top between the pads of the thumb and pointer finger in order to make the top spin. This is termed simple rotation and a skill that is needed for manipulating items with in the hand. When a child writes with a pencil, they need to manipulation and use the pencil with one hand.
-https://www.theottoolbox.com/fine-motor-spinning-tops/