This Yale YALVWS6SC can be fiited in less than 2 minutes so you get instant full protection and security. The WS6 is finished in Satin Chrome and carries a 2 Year Guarantee. The WS6 security door chain complies with the TS003:2012 DHF standard for door chains and limiters. This door chain is simple to install and easy to use, holding the door in a slightly open position whilst restraining against a forced attack. Also helps you identify a caller before the door is fully released. Yale LocksA21B2018
