View on LOZ Suggested Retail: $50. KOMSURF Pull up Bar Doorway, Door Pull Up Chin up Bar Home, Multifunctional Portable Dip bar Fitness, Exercise Equipment Body Gym System No Screws Trainer. Easy & Quick Installation - The Komsurf pull up bar for doorway fits standard doorways from 24'' to 40''. There are two ways to install this chin up bar. First, you can drill holes to mount screws according to the situation if you need. Second, our door pull up bar has an easy-to-install design, allowing you easily mounted at different heights and locations for each workout, so just ensure that the door frame is solid, it's best choice for home and hotel while traveling.. 7 CALENDAR DAY FULL REFUND GUARANTEE ON THIS ITEM IF ANY ISSUE IS FOUND THAT WAS NOT DESCRIBED/PICTURED. 7 CALENDAR DAY STORAGE IS ALSO AVAILABLE. SEE NOTES TO BIDDER, IN AUCTION DETAILS, AT THE TOP OF PAGE 1 FOR MORE INFO.