NOTE: Ensure your doorway pull up bar fits a frame width of 24.4-36.22 inches and a flat edge thickness of 0.59-0.79 inches. Verify the door frame can withstand exercise pressure. Not suitable for hollow-core, glass, thin wood, or sliding doors. Innovative Folding Handle: The pull up bar for doorway features rotating handles that fold in during use, preventing arm and shoulder impact for a smoother, safer, and more comfortable workout. This design enhances safety and focus during training