These tactile Sensory Worry Stones have been designed to soothe, calm and help children focus.The Sensory Worry Stones offer an appealing range of shapes, textures and natural colours, the set includes 12 stones: two each of six designs.Children need to be able to concentrate and feel secure to learn but may children struggle with one or both of these areas in their early years.This superb set of Sensory Worry Stones has been designed to help children focus and maintain a level of calmness.Holding and rubbing a Sensory Worry Stone can help to relieve stress and anxiety, comprises 12 Sensory Worry Stones: two each of heart, egg, grooved, bumpy, two-tone and hollowed).Age 3+.