Specification Brand : Knobonly BulletPoint1 : 【Soft Closing Technology】The drawer slides equipped hydraulic damper which allows the slides achieve soft close effect. Double spring design make less noise when close and open, create a warm and quiet family environment for you. BulletPoint2 : 【Heavy Duty】Made from solid cold-rolled steel, galvanized surface prevent rust. The thickness of our material is 1.5mm. The load-bearing rated load up to 150 lbs. BulletPoint3 : 【Side-mounted】Making sure the drawer case sides are parallel and the drawer is exactly 1/2" on each side less than the drawer opening will ensure a good fit. BulletPoint4 : 【Length】10 inch. Suitable for long cabinet depths of 10-12 inches. (Please note that 8 pcs screws are Included.) BulletPoint5 : 【Full and Not Full Extension】Because of small size and built-in damping system, these 8" 10" 12" sliders are not full-extension. They extend about 2/3 of the slide length. However, the 14" 16" 18" 20" support the drawer slide full extension. Please choose the right size before you purchase our soft close drawer slides. BulletPoint6 : [Weather & Corrosion Resistance] Designed to withstand the harshest conditions, our drawer slides are resistant to rust, corrosion, and weather damage. Whether you're working indoors or outdoors, you can count on their long-lasting performance BulletPoint7 : [Universal Compatibility] Our full extension drawer slides are designed for universal compatibility, they can be easily installed in various types of cabinets, furniture pieces, and even custom-built projects. Whether you're upgrading existing furniture or embarking on a new DIY endeavor, these drawer slides are versatile enough to meet your needs Color : Black CustomerPackageType : Standard Packaging DrawerType : Ball Bearing Slide DrawerType1 : Storage DrawerType2 : Under Mounted Slide ExternallyAssignedProductIdentifier : 5065019149978 ExternallyAssignedProductIdentifier1 : 717332818103 ExternallyAssignedProductIdentifier2 : 0717332818103 FinishType : Steel IncludedComponents : No ItemDisplayDimensions_Height : 0.5 inches ItemDisplayDimensions_Length : 10 inches ItemDisplayDimensions_Width : 1.57 inches ItemName : 10 Pair 21" Undermount Drawer Slides Soft Close Full Extension Drawer Rails, Mounting Screws and Adjustable Locking Device Included ItemPackageDimensions_Height : 68.58 centimeters ItemPackageDimensions_Length : 15.24 centimeters ItemPackageDimensions_Width : 38.1 centimeters ItemPackageQuantity : 10 ItemTypeKeyword : cabinet-and-furniture-drawer-slides Manufacturer : Knobonly Material : Steel ModelName : DT101 ModelNumber : DR-4-14 MountingType : Side Mount NumberOfItems : 1 PartNumber : 533H-LF-DSHH-10Pair Pattern : Commercial/Residential ProductDescription : Featuring soft close functionality to close any drawer softly and silently ProductSiteLaunchDate : 2018-08-07T07:00:00.000Z Size : 10 Inch Style : 1 Pair SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 UnitCount : 10 UnspscCode : 30161808