Thermocare Think Relax Massager is Designed with powerful floating action to provide a positive massage through the fingertips to scalp,face and neck,built for years of trouble free service,can be run for long period of time without overheating. How To Attach To Hand 1.With palm of hand down ,insert all fingers into the REAR SPRING Strap,either hand can be used. 2.inser the Two Middle Fingers Only into the front spring strap. 3. Push machine back on hand so that the front small rubber pad just back of the second joint of the middle fingers.The small vibrating rubber pad transmits the vibrations to these fingers.