This table is poorly designed--it was exactly what I've been looking for, but the wheels don't match up. There are four wheels along the base that are supposed to support the table when folded up, and then a wheel on each extendable side support. The original spots for installing the wheels on the extendable side support set those wheels over 1/2" above the inner wheels and the entire table was wobbly. We drilled new holes to make the castings flush with the extendable side supports (as in the attached photo) and it's still not even with the base wheels. The table is more sturdy this way, but still very wobbly when pushed or bumped.