Usually bought as part of the UDA however they are also helpful for rack attachments (parallel dips, handles, etc). Available in multiple lengths, colors, and materials.
The absolute standard when it comes to body weight dip attachments. Handles are extremely comfortable with customizable widths and removable so they can be utilized in other applications.
Nice beater bar. Knurling is extremely passive, sleeve spin is a bit tight but it does any job you want it to if you try hard enough. Great bar for landmine use.