I be concern when I read a few review talk about how difficult it be to assemble this stand . have now complete the assembly , let I just say that this be one of the simplest kit to assemble that I have ever see -lrb- I be compare to thing like Ikea furniture and whatnot -rrb- . just follow the instruction -lrb- e.g. , do not tighten the bolt fully until you have everything together -rrb- . seriously , this thing be dead simple to put together . the bolt be a little tight , but should be a piece of cake for someone who use the 1090 dumbbell -lrb- I have the 552 -rrb- . all you need be the include Allen wrench and a sturdy , ratchet socket wrench . this be a great , sturdy stand . exactly what I be look for .