Customer Reviews for Sterilite 25.625 in. H x 15.25 in. W x 21.875 in. D Home 3 Drawer Wide Storage Cart Container with Casters (4-Pack)

I currently own 6 of these type of drawers alone along with 8 other sterilite drawers in just my bedroom. They're not flashy and allows you to easily identify the contents of each drawer. My main concern is the lack of structural support when placing items on top of the cart. Sags in the middle with a load bearing weight of at least 5 lbs for a short period of time. Drawers do not slide I with ease with clothing or any additional items placed on top. A simple fix for said manufacturer to add rigidity to potential improved version.

I use several of the rolling carts various size bins to store craft supplies and computer supplies. I like the fact that the carts roll allowing me to move my supplies from room to room as I work on various projects. I recently moved. I removed the caster wheels to keep the carts stable in the moving van. Now that I am settled in my new home, I can not find the caster wheels to one of my carts. Is there a way to purchase the caster wheels for the 3-Drawer cart?