The Wire Yo-Yo Light Hanger is the perfect reflector suspension system that allows you to adjust the height of a hood in one simple step. Tension mechanisms keep the instrument in place once its height is at the desired level. The support strings pull out & retract like a yoyo. The Yo-Yo Light Hanger features a heavy duty stainless steel spring. A pair can support up to 20lb or 6 kg. The maximum extension length is 4 ½ ft.