SereneLife Portable Electric Hot Stone Warmer Set — Digital Spa Heater with 6 Large & 6 Small Round Basalt Massage Stones, Pink

12 natural basalt volcanic stones: includes six large and six small smooth, round black basalt rocks with high silica and iron content that retain heat for approximately 25–35 minutes; Travel-friendly stone heating bag: lightweight, energy-efficient storage/travel case doubles as a stone oven and heats the rocks in about 20 minutes; Digital temperature control: wired controller with LCD display and adjustable temperature range from 86–158°F (30–70°C); Therapeutic relief: heated stone therapy helps ease pain from sprains and strains, reduces muscle tension, soreness and stiffness — suitable for athletes, home use and professional spa settings; Includes car adapter and wall plug: complete kit contains power cable, car lighter adapter, digital controller, heating bag and all 12 massage stones for on-the-go or at-home treatments