The Fisher-Price Simply Senses Baby Gym is a colorful baby activity mat that grows with your little one from lying down to tummy time play. The gym features an archway with 6 adjustable sensory toys, including a portable soft koala with a soft sound and a mobile phone that can be attached to a stroller for fun on the go. Other sensory toys include a self-recognizing mirror, a goose-shaped rattle, BPA-free teething ring and soft crinkle toys that can be moved around the gym arch or used for on-the-go play.