Please note this listing is for 4 PACKS / SETS. All products listed in packs are also available individually, please see our other listings or contact us. The Parliament Hinge is designed for doors which need to fold back on themselves creating the maximum possible opening through a doorway. Traditionally used to allow a door to fully open 180 degrees, back onto a wall. The extra projection allows the door to clear any obstruction - i.e.. an architrave. Comes with a 10 year mechanical guarantee and is suitable for domestic environments.Alias ID - bc07606x4