Squeeze, twist, grab and toss these fun-to-feel spikey twists. Use to encourage tactile exploration, strengthen grip, and wake up the hands and forearms with sensory input before handwriting or other fine motor activities. Perfect for tossing, fidgeting, manipulating and hand-eye coordination activities. Set of 6 includes 3 yellow (medium resistance) and 3 red (soft resistance.) Each ring weighs 0.5 lbs. 6” Diameter. PVC. Surface wash. Use with adult supervision. Age 3+