JDXQBLD Horizontal Bar for Doorway Pull-ups

JDXQBLD Horizontal Bar On The Door for Domestic Indoor Pull-up Device Wall-Free Punching Adjustable Door Frame Hanging Bar. Upgraded three-point support design the area under stress is larger and firmer the heavier and more stable. No punching / easy installation convenient and intimate more practical no need to turn holes no punching safe and practical. Automatic locking device design the gravity increases the horizontal bar squeezes outwards the greater the load the roller rolls clockwise and the axial distance increases. Built-in threaded telescopic rod precision thread finer adjustment and tighter wall attachment. Thick non-slip mat soft and elastic with texture on the outside to prevent the steel tube from rotating strong and durable wear-resistant and increase safety.