Size for Worry Stone: Approx 2.55 inch length, 1.65 inch in width, 0.28 inch in thickness; Weight is about 37-40 gram per piece. It is a smooth and polished stone, there would be small variation in size texture and color compared with the picture shown.7 Chakra Crystal: The thumb stone are made of Rock Crystal, Amethyst, Lapis Lazuli, Green Aventurine, Yellow Jade, Red Aventurine, Red Jasper. The 7 chakra crystal stone represent different meaning of Chakra. It can meet your Chakra Healing requirement. Make you feel the Reiki Energy from the inside out every time.Worry Stone for Anxiety and Reiki Healing: When you move back and forth across the stone, you may feel the positive energy to flow through your chakra. Perfect for reiki healing, positive energy, yoga meditation, peace of mind, chakra balancing, it is a great thumb gemstone for Anxiety Therapy, bring you positive energy and cleanse negative vibrations.Gift Choice: You will receive 1 pc Chakra Worry Stone, comes with a gift box and a grey velvet bag. It is small and exquisite, easy to carry, you can feel the energy any time and anywhere. It is also a wonderful gift for your friends and families, since it will create a strong positive energy around you.Polished Thumb Stone: The worry stone is polished with thumb groove, a smooth touch feeling, hold the stone with your index finger and thumb, and gently move it back and forth with your thumb, good for stress and anxiety relief. Perfect size to be used as pocket stone, then you can always carry easily and feel its power all the time.