Heavy-duty spring hinge Designed for swinging doors from 1-1/8" to 2-1/4" thick Door is held open to a 95 deg position when swung to either side Easy to install - top pivot socket requires no mortising Furnished with reversible side plates for right- or left-handapplications Weight of door is supported by ball bearings which allow for low-friction - smooth operation Satin Brass finish 1 hinge per box