Rev-A-Shelf has kept design and flexibility in mind with this heavy-duty appliance lift system. The lifting mechanism makes lifting heavy or awkward appliances, into a breeze with its spring loaded supports. 3 different settings depending on the weight and simply add your own shelf to match either your countertop or kitchen decor.-Included: (1) Heavy Duty Lift (Assist) System and mounting hardware-This unit does not feature Soft-Close dampener (Model # RAS-ML-HDSC does)-Full height cabinet with 24" depth is required to work properly-(3) weight rating settings that will hold up to 60lbs-Shelf is not Included: and is provided by customer-Recommended for 12" to 21" opening for optimal functionality-Construction: Heavy-Duty Metal frame-Weight Rating: 60lbs-Mounts to interior sides of cabinet