The Remsafe Window Winder comes with a stainless steel chain as standard at our reliably low prices. Our innovative key-operated restrictor mechanism now includes a deadlock function on the upper surface of the winder body. The Remsafe Window Winder is the only winder that allows the user to easily access and alternate between deadlocked closed, the restricted opening distance of 10 cm and unrestricted opening with the use of a key. This new design is more durable without increasing the bulk of the winder or changing the footprint to allow for easy replacement and retrofit. The new Remsafe Window Winder is evidence of our innovative and responsive approach to lock design and function.