Veroda Bouncy Massage Ball tactile Sensory Therapy Round inflate Knobby Balls toys Great sensory, stress or fidget toy Made of PVC/physiologically innocuous plastic compound Large size allows easy interactive play with older siblings or adults Enhances gross motor and tactile skills, encourages crawling and co-ordination This sensory ball makes a perfect first ball for young children as they help to stimulate tactile awareness and promote motor skills