EXTRA SET: One set of heavy-duty 2" mounting brackets, sit-up plugs, and 8 screws included, only a screwdriver or drill is required
FOR ADDED SAFETY: For safety and stability, screws are provided and required for mounting before use
ADD TO YOUR WORKOUT: Extra set of mounting brackets means you can have your pull-up bar in more than one place adding to your routine
End caps are a necessary safety feature for the doorway gym bar. Three very small screws keep the bar secure. An extra set works well for alternate location as the bar is easy to twist in and out of any location to move it to another.