Use on a rack or fix on wall.

No need to buy the whole thing separately, with the Gorila SP3X Silverback Add-on you can convert a simple Squat Rack station in a Versatile Power Rack and double the possibilities. It features a pair of safety pins and a 4 Pack of T-pins for band work. You can also choose to add T-pins and SH25 Jcups in the options below to make it even more practical and add one complete Squat Rack to your rig. The SP3X is also a great way to add pull-up and storage space to an existing rig without having to buy a new rig or power rack. The SP3X cage is intented for professional strength training facilities and affiliates as well as smaller garage gyms. 

If fixed on wall, you won't be able to use the spotter arms.

Added features :

• Free upright color customization
• SH25 J-cups with heavy duty UHMW plastic protection
• Silverback Series hole pattern: 2" away in the squat area and 1" in the bench press area (little reference marks every 5 holes to simplify the adjustment)
• Lifetime warranty on all Silverback products*