Super Anchor Sidewinder Cable Retractable - 20 ft.* The Sidewinder Retractable are built for residential and light commercial construction and covered with Heavy Duty ABS Housing for durability. * The retractable cable lifeline reduces the tripping hazards that can often be found when using a standard vertical lifeline. Less trips means less falls. * The Fall Indicator on the Super Anchor Sidewinder is built into the snap hook so you never have to guess if the unit has been in a fall. Eliminating the