Architectural Ironmongery Supplies, Bristol 
Hush Latch
A clever little closing aid for use on self closing doors where air pressure is preventing a door from closing properly.
£5.35
Fitted to the door frame stiker plate on latches or locks to give a smoother opening and closing effect in use. When using chain door closers.
Overall outer dimensions - 60 x 38mm.
Supplied with fixings and instructions.
Electro plated brass finish.