FEATURES:1. Thicken Chain, Thicken Basement, extra durable!2. Any set up direction is available: you can make it vertical, horizontal or indirect direction.3.Two Intallation ways: screw installation or nail-free glue installation.4. Please be aware whenever you set up it by nail free glue, please depart it for 5days earlier than using, so that it's going to paintings stably and keep safe.PARAMETERS:Brand: NAIERDIProduct Name: 304 Stainless Steel Security Door Chain LockMaterial: 304 Stainless SteelColor Brushed Silver/Brushed Gold/Red Bronze/Green Bronze/BlackApplications: Door Latch Lock, Window Latch, House Gate Anti-theft Lock, Hotel Room Security LockPackage includes: 1 x lock ( you may prefer screw set, or screw and glue set )NOTICE:1. Real shade could display diversified in numerous displays or beneath varied light, please focus on the colour of the product actually received.thank you!2. Please allow 1-3mm error because of handbook measurement,please make sure you do not intellect earlier than you bid.