Materialï¼?work hardened cold rolled steel Sides Lengthï¼?250mmï¼?700mmï¼?10"ï¼?28"ï¼?(One grade for every 50mm.) Load Ratingï¼?45kg/450mmï¼?18"ï¼? Finishï¼?Electro-zinc plated with clear or color chromate, black chromate available Featuresï¼?with separable release latch, simple insert type installation Importanceï¼?The installation gap between rails is 12.7+0.ï¼?mm Slide travel: 3/4 extension Application: a) Office furniture drawers b) Kitchen cabinets c) Home furniture drawers