product seems sturdy and well made but does not extend or retract, slid off cover and touched limit switch then product functioned. Was told to buy another and get sent to me and then send the other back, of course at my cost for new product and returning the non functioning one, also did not receive the mounting hardware as stated and when I called and asked about, they said would get me out asap but have not seen them, that was over a week ago my order # was 7882