Ikea has 16 feet (4.8m) of white cord protector for $5.99 USD. It's 1 inch (2.54cm) in diameter. That's super cheap compared to the box home improvement stores. It's still cheaper including the $5 shipping.
https://www.ikea.com/us/en/p/rabalder-cable-organizer-white-20281419/
https://www.ikea.com/us/en/p/rabalder-cable-organizer-white-20281419/