Inferior pincer grasp. Before your baby gets a refined pincer grasp, they use an inferior pincer grasp. In this grip, your baby holds a small object between their thumb and forefinger using the pads.

These are movements that require precise control of small muscles in the hands. ... Children are able to pick up smaller, thinner objects when they can accomplish a pincer grasp.

The pincer grasp also supports cognitive development by allowing babies to manipulate objects, develop problem-solving skills, and enhance their hand-eye coordination.

They're also figuring out how to fit smaller objects into larger ones, which makes stacking cups a lot of fun. And 10-month-olds have the skill to hold a toy in one hand while using the other hand ...