Tummy time is essential for developing strong head, neck, and shoulder muscles as well as defining certain motor skills. This inflatable tummy time mat is the perfect activity center with a water play feature that helps strengthen baby's back, legs, arms, and neck. The mat is constructed from thickened PVC and is designed for sensory stimulation, motor skills, cognitive abilities, and social skills. Simply fill the mat with water and inflate the edge with air, and kids can have hours of tactile and visual fun.