Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: No Bars to hold the shelves

Maybe I am just not familiar with the Rubbermaid shelving system. They shelves DO NOT come with the bars to install them on the wall. I wish the description could have made it clear that you'll need to purchase the extension bars. My son was disappointed because with the extra cost of the extension bars, they become too expensive. Had to return them.