Size: approx 1.5" long x 1.5" wide x 0.2" thick (40 x 40 x 5mm)<br> Material: natural stone<br> Package: 1 Piece <br> Worry stones (palm stones, thumb stones) are smooth, polished gemstones, usually in the shape of an oval with a thumb-sized indentation, used for relaxation or anxiety relief.<br> Worry stone can help in reiki, crystal healing,feng shui, energy, protection, wellness, psychic energy, home, office, deflector,success,prosperity,meditation,concentration etc.<br>