Premium 3/4 Inch Round Basalt Stones - Set of 2 - Natural Volcanic Rock for Massage, Hot Stone Therapy, and Home Decor - Perfect for Spas, Yoga, and Relaxation

The three-quarter sleeve round basalt gemstones is best used in hot weather, to use the back abdomen and lower back temperature to relieve muscle tension, especially in the thigh area massage treatment.

Polishing technology can ensure that its surface is uniform and smooth. No chemicals and no radiation.