The present invention discloses an improved insulated beverage container holder formed from foam in the shape of a human hand holding a beverage container. Those electrical pulses form a composite pulse in the patient which stimulates the nervous system of the patient. The hinge includes at least a perpendicular opening and closing shaft to open and close the upper unit with respect to the lower unit and a horizontal rotation shaft, fixed vertically to the surface of the lower unit, to rotate the upper unit with respect to the lower unit coming in contact with each other. The range of abrading pressures is large and the device can provide a wide range of torque to rotate the workholder. Upon the removal of a manhole cover and or upon the detection of a volatile gas within the manhole, the alarm emits an audible alert andor transmit a signal to a remote station indicating that the manhole cover has been removed anor the presence of a volatile gas in the manhole.