Overview Reviews Product Description Brightly colored balls for sensory ball pit support the child and encourage gross motor activity. 3" (67 mm) diameter balls available in red, yellow, blue, green, purple, and orange. Case of 500 green balls. Product Videos Custom Field Product Reviews Write a Review Write a Review × Skillbuilders Large Sensory Balls, (73mm) green, 500/case Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *