Features: 1.Soft Closing with last 30 mm stroke 2.Automatic low noise closing action-slience 3.Pre-assembled, ready to install 4.The BS4509A is a soft closing side mount ball bearing drawer slide. Features include, an air filled soft closing cylinder with the last 30mm stroke, nonhanded disconnect release, and 100 lbs. load rating, slides are available in zinc, black and white epoxy finish. Sizes available for 12 to 28 in. 5.32mm hole pattern with direct access mounting. 6.With trigger release disconnect for easy drawer removal. 7.Hold- in feature, silent movement 8.Side space adjustable tabs Specifications: 1.Side space - 12.7 mm (0.5");Height - 45.6 mm (1.80") 2.Extension:100%, Over travel 1" 3.Size: 200mm-900mm 4.Mounting: Side, for frame and frameless construction 5.Load capacity: 45kgs/450mm 6.Finish: SPCC Electro-Zinc Plated with Bright / Black,Chrome 7.Thickness: 1.2/1.2/1.5mm;1.1/1.1/1.4mm;1.0/1.0/1.2mm 8.Material: Work hardened cold rolled steel