i purchased two of these, and unfortunately only one came with the hardware bag for securing the washer and dryer to the tops of these.  of course, i did the dryer first since that way i didn't have to disconnect the gas line and such, so now it's too late to pull them off of that and use them on the washer which is much more likely to need these... 

it's tall, but not tall enough for tall liquid laundry bottles.  doesn't bother me, i use pods and that fits in here fine.  

solid, a bit hokey with the hardware getting screw holes to line up right, had some inventive words i was using there when getting the dryer secured.

all set to secure the washer and put it in place and now i can't, so have to find if i can buy the hardware set separately or something...