tactile seating wobble cushion blueWelcome to the wrigglers and the funny little fidgeters! Like a balance ball for children, our spiky tactile cushion improves posture and focus simultaneously! It s spiky on one side and bumpy on the other, so your child can choose the type of tactile input that s right for them. This cushion provides active seating or balance training combined with the tactile input that many children crave.