A play gym is a type of baby toy designed to encourage physical activity and sensory exploration. It typically features a soft mat with hanging toys, mirrors, and textures that stimulate a baby's senses. Play gyms are often used for tummy time, helping infants develop their muscles and coordination as they reach for and interact with the toys. These gyms come in various designs, often themed with colorful patterns and characters. They are suitable for babies from birth to around six months old, providing a safe space for play and learning. Many parents find play gyms beneficial for promoting cognitive and motor skills in their little ones.