These heavy duty TTL cords are designed to fit Pentax Digital cameras that use dedicated flash units. They feature a molded shoe on one end that slides onto the camera hot shoe and locks to prevent accidental dislodging of the shoe. A second shoe mounts onto a flash bracket or light stand via either a standard foot with lock or a 1/4-20 thread. The top of the shoe accepts the flash unit. A heavy duty 3 foot coiled cord connects the shoes.