The Body-Solid GPU348 Pull-Up Bar is a knurled pull-up bar allowing users to perform pull-up and chin-up exercises on the GS348Q Series 7 Smith Machine. The GPU348 is designed exclusively for Body-Solid’s GS348Q Smith Machine only. The GPU348 is not compatible with the Body-Solid GS348QP4 Smith Machine Package, or units with the GLA348QS Lat Attachment.