Catch hooks must be used in accordance with the standardCatch hooks to EN 1158 as part of the door coordinator designed as:Integrated catch hook concealed in the upper active leaf rebate, with counter hook in the upper passive leaf rebateSuitable for door gaps from 4.5 mmAdvantages:universally applicableDamping of the spring-loaded latching hooksvandalism-proofNo damage to door surfacesConcealed positionCompatible with all door coordinatorsIndependent retrofittingThe required size depends on the space available, sash sizes, hinge axis and the door coordinator (waiting position of the active leaf).By using size 2, the opening angle of the active leaf is increased when opening via the passive leaf and the necessary waiting position of the active leaf is therefore better achieved. For this reason, size 2 is preferable to size 1. With size 2, the travel on the movable driver hook is 80 mm longer, so the cut-outs are 80 mm longer. 1 = 215 mm, size 2 = 295 mmMaterial: black galvanisedType: 22900006Direction: universalUsed for: passive sashDimensions(mm): 164 x 29 x 4Contents (ST): 1.