What is the approximate age range when infants generally develop a mature pincer grasp?

The mature pincer grasp is a fine motor skill typically achieved by infants around the age of 9 to 12 months. This grip allows an infant to hold and manipulate small objects using the thumb and index finger, demonstrating significant advancement in their hand coordination and dexterity. By the end of the first year, many infants begin to refine this skill, showing improved control and the ability to pick up smaller items, which is an important developmental milestone.

The other age ranges mentioned in the options extend beyond the typical onset of the mature pincer grasp, suggesting that while improvement in fine motor skills continues post-12 months, the mature pincer grasp itself is commonly understood to develop within that 9 to 12-month window. This differentiation is vital in understanding developmental milestones in pediatric health and child development assessments.