The Linex VKR Power Tower X615 features 2-3/8" (60mm) Tubular steel frame construction with 2" (50mm) base frame, "Fold-Away" VKR handles for added safety, non-slip dip handles, built-in "Step-up" arms for easy access to VKR/Pull-up station, multi-hand position pull-up bar with non-slip grips, hi-density contoured foam pads with stitched upholstery, and an epoxy finish with rustproof base coat.