Similiar to the T-Bar hanger, The T-Strap is used for free hanging gutter applications. The T-Strap hanger works in conjunction with our standard duty hanger. The standard duty hanger is slotted in the middle to fit the T-Strap. The T-strap needs to slide through the hole of the hanger perpendicularly. When the notch in the T-Strap meets the hanger, just turn the T-Strap 180 degrees and you're ready to go.