Yale V WS6 EB TS003 Door Chain, 13.5 cm (5.25 inch) chain length, Polished Brass Finish, High Security, Visi Packed, suitable for PVCu and Wooden doors

Amazon

Simple to install; suitable for wooden doors Helps to hold the door in the slightly open position Restrains against a forced attack Helps you to identify a caller before the door is fully released Easy to use, Weight: 0.20062065842 pounds, Manufacturer: Yale

ManoMano

This Yale YALVWS6EB can be fiited in less than 2 minutes so you get instant full protection and security. The WS6 is finished in Electro Brass and carries a 2 Year Guarantee.