These 4 Worry Stone Pals offer children a discreet, tactile approach to focusing their attention, calming their nerves, and managing stress throughout the day. Each Sensory Wristband comes with four removable worry stones - each with a character that highlights positive learning traits. Our Worry Stone Pals Set includes an adjustable, soft-plastic wristband, plastic storage stand, 4 character cards and a getting Started Guide.