Note, these prices are way below for similar items on ebay or amazon (including used prices).
Whats about this ...https://smile.amazon.com/AmazonBasics-Vinyl-Outdoor-Extension-Cord/dp/B00OS7ELK6/ref=sr_1_fkmr3_1?ie=UTF8&qid=1510861694&sr=8-1-fkmr3&keywords=Dura+Power+100+ft.+Extension+Cord