Rev-A-Shelf's Two-Tier baskets make other 2-shelf units fail in comparison. With the heavy gage construction, ball-bearing slides on both baskets, and multiple mounting points this is the best two-tier unit on the market. With 100lb slides on each basket you don't have to worry about overloading or bending the wire as these units will work in almost any size base cabinet. The multiple mounting points make sure that any sort of side to side movement is limited. Finish the look off by adding the optional door mount kit. � (1) top basket, (1) bottom basket, (2) u-shape supports, (1) rear moutning bracket and mounting hardware � 100lb Full-Extension Ball-Bearing slide system � (3) height adustments on top basket � Two-Tiers operate independently � U-shape brackets ensure proper alignment and easier installation � Designed for a 24" cabinet with a 20.5" opening � Optional door mount kit available (5WB-DMKIT, sold separately) � Provides both durability and elegance with its heavy gauge wire construction � Bottom, side and rear mounting for total stability � Limited Lifetime Warranty � Image shown is various size models. Actual unit is 21". Product ID 78597489