This unit is EXTREMELY CHEAP! The Allen wrench tools provided do not fit their own screws. The smallest wrench only fits 6 screws out of the 30 and these 6 screws only secure the plastic 2in Olympic weight adapters. The other 2 Allen's they provide are USELESS. They fit ABSOLUTELY NOTHING. The other MAJOR issue is that just upon snugging tight all of the bolts, not even tightening them, the paint in every bolt area bubbles up and flakes off IMMEDIATELY. This is because they are using such a CHEAP, THIN METAL GAUGE, that the metal buckles and indents as you tighten the bolts. Without power tools, just a wrist and an Allen wrench, the metal tube supports begin to crush inwards. WHAT A TERRIBLE PRODUCT! Haven't done 1 set yet and every bolt hole has paint flaking off and bare metal already showing. If it wasn't such a pain, this would go back. This is where they get you.... Who wants to disassemble everything again, try to fit everything back in the box and rent a truck to get it to UPS. NOW YOUR STUCK WITH A PIECE OF ****!Learn from my mistake of trying to save $50.....DO NOT BUY THIS UNIT AND STAY AWAY FROM THIS COMPANY.