Adjustable 6 holes heights to meet different person's height requirements more convenient. Easily to install,it takes only a few minutes to install the slides. Various application,the slides can be applied to your office desk, cabinet, furniture hardware , kitchen drawer, keyboard drawer,tools organizer accessories,dresser drawer tracks , store fixture and more usages. High quality selection material,heavy bearing ,durable anti-corrosion corrosion resistant,you can use for a long time. Humanized detail design ,equipped with steel ball bearings and cushions to ensure smooth sliding of the slides, reduce noise and achieve quiet performance.