??FINE WORKMANSHIP?The surface treatment is fine, no rust, no fading and quality assurance. ??WIDE USE?The door lock is suitable to all movable glass doors and windows, easy and quick to install, saves installation time. ??DOUBLE-SIDED SHACKLE?This model is a double-sided hook lock, which #39;opens and closes smoothly and comfortable to use. ??STAINLESS STEEL MATERIAL?The sliding door lock is manufactured with stainless steel housing and zinc alloy accessories , no need to worry about its quality.The black door lock with modern and simple style, will not be annoying when installed on doors, useful. ? ?Modern And Simple Style?Modern and simple style, will not be annoying when installed on doors, useful.