Abstract: A device for quickly releasing tension in a load securement element such as high tension banding used to secure loads to railroad flat cars. The device includes a tubular housing within which a slide member is movable between set and released positions. Attachment devices for connection to the band or element and to a support are carried by the housing and slide member and are separated when the slide member moves from the set to the released position. A lock pin carried in the slide member engages the hosuing for locking the slide member in the set position, and also for guiding the movement of the slide member in the housing. A release element on the housing is readily movable in the transverse direction, as by striking with a hammer, to release the lock pin and permit the slide member to move from the set position. A bright colored surface on the slide member visible through a window in the housing indicates the position of the slide member.