The X31 features a tested loading capacity of 800 lbs.It is powder coated in the color of matte black
The rope hook on the side of all four uprights provides the security for tying the tools or loads
There are FIVE drilling holes on the upright plate, which make X31 more compatible bolting on different sizes of bed margins.It also has the C-Clamp (ASIN:B0789DDLBJ) to choose which No Drilling Required
The top section is built with Two "T" sleeve bars plus Middle Cross Bar. The Double-barred Middle section won't easily dent or bend, making it even stronger than a one-barred design
The extendable design also makes it compatible with different Truck-bed Width ranged from Min.51" - Max.71"