suitable for lab,office,home,car etc. heating and electric push rod actuator is for used discharging of the turning-over cylinder.Features:1. Simulating, massaging,kneading and thumping of human hand. Eliminating aches and tiredness of neck, shoulder, waist, back and feet. 2.Thumping devices, knocking and stimulating reflex zone and acupuncture points you body. 3.Building-in 12 Kneading balls providing kneading and vibrating massage function. 4. Infrared Function to promote blood circulation. 5.Free adjustment of massaging and thumping speed and strength 6.Micro-computer controller