Recent 22++ Closet Helper Shelf And Hang Unit. Secure up to eight on this hanging unit that can be stowed away toward the back of the closet. In our lab we carefully turn it into a beautiful pendant lamp. 1,112 closet shelf unit products are offered for sale by suppliers on alibaba.com, of which storage holders & racks accounts for 5%, stacking racks & shelves accounts for 1%, and supermarket shelves accounts for 1%.