Marble Fidget Toys So Many Uses: Fidget Toys Very Suitable For People Who Are Anxious Easily. Help Improve Focus And Relieve Stress.Help Correct Bad Habits.As Nail-Biting,Anxiety,Avoid Developing Bad Habits. How To Use: - By Squeezing, Bending, And Sliding Marble Back And Forth, You Can Effectively Relieve Stress And Reduce Fatigue. Easy To Care: Material: Made Of High Quality And High Density Nylon And Marble, Durable And Safe,Easy To Clean. Each Pack Contains: This Package Contains 100 Pack Marble Fidget Toys,30 Colors . Approximately 4' Long Each With One Marble Inside.