I have a set (4)of matte black PR 4000 16 inch crossmembers that are brand new in the box. These are 3x3 with 5/8 holes. I purchased them with plans to build a new squat rack and decided to go a different direction. $125 for the set. They will fit other brands like Titan Fitness, or Fringe Sport. I also have a pair of mini rack feet that are also brand new. $95 for the pair. You can purchase all of it together or separately. Save a little money on brand new items and skip the wait to have them shipped.