6 Pairs of 18 Inch Undermount Soft Close Drawer Slides Full Extension Concealed Drawer Rails with Mounting Screws,3D Locking Device and Brackets

MEASUREMENT:Length:18inch(457mm),inside cabinet length(min):494mm,inside cabinet length(max):514mm.Load Capacity: 85LB.Note: These drawer slides are to be used with 1/2" or 5/8" thick drawer box material. (not recommended for 3/4 inch material.) | SOFT CLOSE FUNCTION:Creating less noise when it's opened and closed,providing your family a silent home. | HIGH QUALITY:Full extension.Heavy-duty construction.Made from thickened cold rolled steel with a zinc plated finish.Durable for use. | PACKAGE CONTENT:6 pair(12 pieces) of 18inch undermount drawer slides,rear mounting brackets, 3D adjustable locking device, mounting screws, instructions for easy installation. | LIFETIME SERVICE:Any problems occur,please feel free to let us know first and we'll give you a best solution.