Product review (1 stars): Caster Wheels for Haier Portable Washer
Has to be the worst thing I have purchased in a long time. Cheap wheels falling apart trying to move the washer around. Literally put them on, set the washer upright to move around and the wheels were coming apart.  They don't really support the weight and aren't made well.  I went to Home Depot and spent $4.99 ea. for the four wheels needed. They screw on and work perfectly.  I would wait before purchasing these, your local hardware store can do better!