These Dampening Offset Butt Hinges consist of two leaves with a Teflon coated pin that produces a very precise, low friction movement for a very high end feel with anti-rattle properties, designed to be mounted on the front surface of a raised door with a 3/8 offset on one side. Constructed of corrosion resistant stamped 304 stainless steel. Installs with four #8 FH fasteners (not included). Patent Pending.