electric lumbar traction machine lower back massager vibration massage device heating lumbar spine pain relieve fatigue

item type : massage & relaxation model number : la028 application : waist material : cotton, abs product name : intelligent lumbar traction massager function1 : dynamic air compression traction stretch lumbar spine function2 : multi-frequency vibration massage function3 : infrared heating traction modes : 2 timing : 15 minutes