Features: High quality selection material,heavy bearing ,durable anti-corrosion corrosion resistant,you can use for a long time. 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. Humanized detail design ,equipped with steel ball bearings and cushions to ensure smooth sliding of the slides, reduce noise and achieve quiet performance. 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. Package Includes: 1 Pair Keyboard Slide Specifications: Material:Irony Size:As Picture Showes Color:Black note: Please allow 1-2cm errors due to manual measurement. Due to the difference betweeen different monitors,the pic may not reflect the actual color of the item.