Here ya go!

Yagote Foot Hammock Under Desk Footrest with Headphones Holder Upgraded Adjustable Feet Rest Prevent Swelling and Soreness for Office Desk (Black) https://www.amazon.com/dp/B07Q8FSCV6/ref=cm_sw_r_cp_api_glc_fabc_GnpZFbEQ9AYA5?_encoding=UTF8&psc=1