ball bearing slide 1,Slide surface has good and durable anti-rust propert 2,full extension silent movement ball bearing slide1, full extension silent movement2,dynamic load capacity :25kg(18")3,material: galvanized steel4,material thickness: 1.5x1.5mm5,tool-free quick installtion6,drawer height adjustable by 0-2mm7,length: 250-600mm soft closing invisible single extension slide