guzzie+Guss Universal Cup Holder, for Strollers, Wheelchairs, Mobility Walkers, Bikes, Camping Chairs. Easy, No Tool, Install with Anti-Slip Sleeve, Fits Wide Variety of Drink Containers, Black https://smile.amazon.com/dp/B005G14BIU/ref=cm_sw_r_cp_api_glt_fabc_KTZWBJ3M7J91H1CRM62Z?_encoding=UTF8&psc=1

Been using this one since 2016 and still going strong.