Infant reach improves with age: at four months they touch the groin, at five months the knees, at six months the feet, and at seven months the foot to the mouth.

“the infant's range of of reach will will improve as well at four months they're able to touch the groin area at five months they can reach their knees at six months they can reach their feet and then by seven months they're bringing the foot to the to the mouth”