Cabinet width is what usually rules out a double-bin pull-out, and two 27 qt. bins take less of it than the 35 qt. pair while keeping the thing that matters: waste and recycling stay separate, which is the entire reason for a double unit. Fifty-four quarts across the pair also suits a household producing less waste, where 70 quarts would sit half empty between collections and take cabinet space for nothing. The under-mount design fits a base cabinet or an under-sink position so the bins stay concealed rather than standing on the kitchen floor, and soft-close slides bring them to a quiet stop rather than letting a loaded bin slam. Mounting holes and fasteners come with the unit, so it fits an existing cabinet by positioning and fixing. Color: Gray. Material: Polypropylene.