A worry stone is a small, smooth stone held in the hand to help calm down. It is rubbed with the finger to relieve tension, shift focus, and ground yourself. It is suitable for people who have a habit of biting their nails.
 

 
 Material: semi-porcelain
 
 Included: 2 waxed cotton cords (black and white).
 

 
 Size ~ 4x3.5 cm