What is this?These natural crystals are known as thumb worry stones. Designed with a comfortable, thumb-sized indentation, these natural stones are intended for gentle rubbing in the palm of the hand. This simple action provides a soothing tactile focus, which can help with relaxation during moments of stress, anxiety, or during yoga and meditation.What will I get?Style: Black Net Stone;Shape: Oval;Size: 45x35mm/1.8x1.4 inch (LxW);Package list: 2pcs x Thumb Worry Stone.Are there any advantages of the product?Each worry stone is crafted from natural gems and crystals, which are often associated with joy and relaxing energy, and are suitable for relaxation. The smooth, cool texture and an ergonomically shaped indentation provide a good-looking appearance and a pleasant sensory experience, helping to ground your thoughts.