These Crystals are Handcrafted in India exclusively for WholesaleGemShop and are charged by a Reiki Master. Worry stones are a smooth polished gemstone that is typically oval shaped, it is handcrafted and feature an area of indention for your thumb. Worry stones work by using a form of reflexology or nerve pressure that when rubbed promotes a feeling of calm and relaxation, crystal healing, psychic energy, wellness, positive energy, calm, strength, health, prosperity, protection from negative energy. Worry stones are also easy to carry in your pocket, ready to bring you a sense of calmness when you need it. One can rub the thumb white watching TV easy! It's size: 40x28 mm approx. Since this is natural stones, there will be some natural variations in stone size, pattern & color. These stones are hand-carved and have some variations.