J Bryant Fitness Metal Gym Handles Multi D-Ring Handle Heavy Duty Aluminum Alloy Handle Grips Durable Workout Handles for Pulley LAT Pull Down System

I haven't had any issues with these. It looks like it's weight capacity is around 400lbs so you should be good with those. They posted a strength test video on their facebook page which I'll link below. I also found a similar option made of aluminum. They're both D shaped just a bit different. But you could also just get a pair of used standard handles and wrap it up in grip/hockey tape to get the shape you want.https://www.facebook.com/1956714054563909/videos/2113907015511278https://www.amazon.com/Bryant-Fitness-Handles-Aluminum-Durable/dp/B09JLPRK2F/ref=sr_1_30?crid=D99I39A6G5SE&dib=eyJ2IjoiMSJ9.bUpQmlMdfmre0JlzNuexS9pvXtzMSntehDrxjltyHabPKryoa7qlDb7MB1CPZj3JGGeJSiE55C1G60zxEU3QB8SZO_wbq62F0qNyQ3oRFU9m_OTs4fch3hv19ab1qNJgsmcb8nN-DlEezLLhR1reBnbOFhdJve29VfwJshZZUKWdINCXfZE6LwIPonFPlXfKMI6yPnyp9XZBjniEH12xCsEwLS7URCAwbb-A9r_f4E9wVlK283LXyfzcuo9FsgPpIktRio4WCMSdGMJH_HS4-ysCOvMuRkk589X028m9gMc.PTAuiKyFQqF1gkdL31fWri1ox2RmNTRbUhazItfLl5Q&dib_tag=se&keywords=lat%2Bpulldown%2Bgrip%2Btaper&qid=1781529634&s=sporting-goods&sprefix=lat%2Bpulldown%2Bgrip%2Btaper%2Csporting%2C135&sr=1-30&th=1