Have purchased a number of styles of storage drawers.  They all had wheels break-out due to lack of proper design.  Drawers on the wide ones always have a 'sagging' problem to this day.  Solved the roll-around problem with a new base made of moving dollies. Helped (but not solved) the drawer problems with reinforcedment via 4 inch wood 'plates' screwed on corners. Seems to work OK, although unsightly for a living room/kitchen.