Rytopt Stress Balls For Kids And Adults, Stress Cube Fidget Toys, Sensory Toys, Enhanced Grip Strength Squeeze Toys, Square ShapSpecification: Model No. : G22N Material: Thermoplastic Rubber (Tpr) Color: Blue Product Size: 1. 9*1. 9*1. 9 Inch Package Including: Large Stress Cube* 1 How To Play: Simply Squeeze The Cube With Your Fingers And Experience A Gradual Release Of Tension! How To Clean: Clean With Soapy Water Or Gently Wipe The Surface With A Damp Cloth.