Iron Age Pull Up Bar Doorway US Invention Patent with Smart Hook Technology

Safe weight limit up to 440 lb (200 kg). Acceptable trim height up to 3.54″(9 cm). SMART HOOK TECHNOLOGY-With the revolutionary invention of smart hook, our genius design pull up bar decomposes the downward force generated by doing pushing up into several much smaller horizontal and vertical forces due to our unique construction.

https://www.ebay.com/itm/Iron-Age-Pull-Up-Bar-Doorway-US-Invention-Patent-with-Smart-Hook-Technology-/303943200604

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