Rev-A-Shelf RAS-ML-HDCR Heavy Duty Kitchen Appliance Lift Assist Mechanism. * Spring loaded system gently brings small appliances to counter height * Can be used with many different widths with a minimum base cabinet frame opening of 12-1/2-inch * Heavy duty lift (assist) system with 3 tension settings to adjust to heavier items Holds up to 60lbs. As New. Still in the box ordered for project but not used. Email or text 250 896 3891 for more info.