Tangle Toys: Tangles therapy toys can lighten your mood, make you relax, improve motor skills and play with sensory toys. | Concentration: Just the right size and hand weight helps to concentrate at school, workplace or home. | Relieve Irritation: Useful irritation toy for those who want to quit bad habits. | Just the Right Size: A convenient size for your pocket or purse. | Safe And Durable: Very safe and durable for children over 3 years old.