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 60 lb. - Shelf is not included and is provided by customer - Recommended for 12" to 21" opening for optimal functionality - Construction: Heavy-Duty Metal frame - This unit holds 60 lbs. Whole Unit - Mounts to interior sides of cabinet - Limited Lifetime Warranty