Worry Stones also known as Palm Stone are smooth, highly polished gemstones, round to oval in shape with a thumb indention. Worry Stones originated in Ancient Greece and are still used today to lessen ones stress and worry and when rubbed bring about a sense of calmness. Rubbing the smooth surface of a worry stone puts pressure on the nerve within the thumb, this pressure releases endorphin's into the system which may act as a natural relaxant. There are many great uses for these stones, hold while meditating, use as healing stones, tools for the magical trades and to be carried in ones pocket or purse and also make wonderful gifts. Moss Agate is a beautiful stone holding strong connections to nature and said to have stabilizing properties. It is a quite transparent stone with branch like foliage or moss throughout. Many believe this stone will assist in improving self-esteem and release stress. Also a popular stone given as gifts as it is said to attract abundance. Please allow for natural variations to occur as each gemstone worry stone is unique which adds to it's beauty, note that all of our crystals are of a high quality. Approx size: 1 1/4 inch to 1.5"