15cm diameter sphere. Square base, 15cm length, 3.5cm height. 4.5kg. Felt base to protect surfaces. This is the hallmark piece of the Anti-Aging Alliance Inc. collection of shungite for therapists. The president was inspired to request this size and design so clients can put their hands directly on the shungite with the aim of replicating the benefits patients receive when they are placed in shungite chambers, rooms made completely of shungite, in Russian hospitals. Therapists use it themselves and have clients put their hands on it for 15 minutes prior to treatment. It helps the clients relax and soften their body, thus allowing massage therapists to go directly into deep massage, and enhanses the depth of all kinds of therapy. Place it in the center of your home or business, with a large pyramid in the far corners of the building to create a powerful grid that cleans the air and supports the wellness of those in the building.