They are just OK but if you have the option of getting a sturdier plastic bin I would recommend that over this fabric storage - I had to get this because of the low height under my bed frame. If you don't take very good care of it (ie, forgetting to zip closed all the way) it'll get really flimsy really quickly. If you overstuff and try to pull from the handle (or if there's friction from carpet underneath) the clear top will rip off from the zipper area and you'll have to pull the units from the sides of the product to reduce ripping further.