Himalayan Salt Lamps are made from pieces of Himalayan salt crystals. They serve as beautiful interior decorations & act as natural sources of light. However, the many diverse functions of Himalayan salt extend far beyond aesthetics. Combined with a light source inside the lamps, the chunks of salt produce negative ions, which yield positive effects on indoor air. Placing a Himalayan salt lamp in every room of the home can reap several health & environmental benefits. Among other things, they can: Balance Electromagnetic Radiation Enhance Overall Breathing Cleanse, Deodorize, & Purify Air Calm Allergies & Reduce Asthma Sharpen Concentration & Performance Reduce Stress & Promote Relaxation Each lamp is about 4-6 tall & comes with a 40 USB power cord. Mini Himalayan Salt Lamp