Hills Extenda 4 Retractable Clothes Line – Great for Couples! The Hills Extenda 4 is the next generation of retractable laundry line from Hills for couples living in the US, with 4 lines that extend out to a distance of 19 feet and retract out of sight when not required or needed. This rust-resistant dryer works indoors or outdoors. Check out this retractable clothesline for couples here. Posted by Gary Nickless → January 23, 2011 at 9:00 PM under Clotheslines and Laundry