Warms Himalayan salt stones to a consistent 13 degrees. Salt stones will warm to desired temperature in approx. 4 minutes. Made of bamboo, intentionally chosen by Saltability for its ecological benefits: abundant and sustainably harvested. Features a UL listed silicon-covered base with state-of-the-art heating technology that maintains a consistent temperature. Easily disinfect with Decon 3. 2-3 gentle sprays, wait 1 minutes to kill any possible contaminants, then immediately and thoroughly dry with a cotton towel.. As an added benefit, warmed Himalayan salt in the bamboo tray gives off negative ions in your spa environment, helping to relieve anxiety, reduce stress, improve sleep, reduce indoor air pollution and allergens and more.