Seller's Description Excerpt Recommended Maximum Weight: 135 kg Mounting Type: Doorway Mount Material: ABS, Alloy Steel Features: Non-slip, 360° Rotatable Dual Gear Lock, Integrated Non-slip Cotton Handlebar No Drilling, No Marks: Innovative fixing technology secures the bar without drilling. Supported by a 16.5 x 4.5 cm PVC mat, maintaining sufficient friction. The base and bar are connected by four metal parts. Even if the bar comes loose, the PVC mat is designed to be pushed outward, preventing the user from falling. Easy Installation: In addition to the instruction manual and video, the main unit has 5 arrows and a level function on both ends. Please check the strength of the door frame and wall, and adjust to the appropriate length and height. (Avoid installation on low-durability tiles, glass, stainless steel, etc.) Advanced Mechanical Locking System: Designed for safe use by users of all ages. Equipped with unique 360° rotatable dual gear locks on both ends to prevent the bar from loosening. It has passed a series of research and development tests and is certified as a safer and more durable product. Integrated and Extended Structure: Unlike common pull-up bars, it comes with an extra-long, integrated non-slip cotton handlebar. It is odorless, sweat-resistant, and highly abrasion-resistant. The size can be adjusted from 75cm to 94cm by simply rotating the bar. It is ideal for training such as pull-ups, abdominal exercises, push-ups, and stretching. Sturdy Construction: The combination of a 2mm outer steel pipe and a 1.5mm inner steel pipe can support a maximum weight of 337.5 kg. It prevents deformation and damage, ensuring long-term use as a home gym equipment. The longer the bar's usage distance, the smaller the load. (Note: Recommended weight capacity is within 135kg. The load on the bar varies depending on the extension distance) [Maximum Load Capacity: 135kg] Please adhere to the regulations specified in this document to ensure safety and compliance. *Although verification tests have shown that the instantaneous load capacity of this product is up to 337.5kg, meeting the safety factor requirement of 2.5 times, the product's capacity may vary depending on the usage environment and conditions. Always adhere to the 135kg limit and the following precautions. Show Less