6 Pack Sensory Stone: Each fidget stone comes in a different vibrant color and features a unique texture, providing a satisfying sensory experience for toddlers, kids, teens, and adults. Meet all your kids sensory needs through twisting, rubbing and touching these quiet stress toys. Calm Down Tool: Repeatedly rubbing these textured fidget toys through fingers up and down to replace autistic children's unconscious repetitive behaviors. An effective way to relieve stress for special needs adhd autistic children, help promote focus and relaxation. Safe and Reliable Materials: Made from high-quality, silicone rubber material, these silent fidget items are durable. They are also safe and gentle on the skin, offering endless hours of tactile fun. We can play this stress toys with children with complete confidence, it will not cause any harm to children, because it is very soft and feels comfortable.