Silver Mystery Sensory Balls Pack of 6

Set of 6 reflective mirror balls that look identical but all have individual characterisitics. Some wobble ehen rolled or turn and wont roll in a straight line, some feel funny when twistd, spun or shaken and others make different shaker or rattle sounds. Made from hard-wearing stainless steel and lightweight, smooth and tactile to handle. Size: 100mm dia. Set 6. Suitable from birth.