These Quick Connectors allow you to attached your neck strap and wrist strap at the same time, and to quickly remove either the neck or wrist strap, or both. Very handy for photographers that quickly change between straps and shooting positions.
The strap on these quick connectors attaches to your camera in the same way your stock strap attaches to the camera. On the other end of the quick connectors is a buckle that connects to your camera strap and a buckle to connect your wrist strap. (Buckle can be placed on left or right side of camera to accommodate left- or right-handed photographers.) Both neck and wrist strap can be connected to your camera at the same time.
Quick connectors can also give you an additional 9 inches of length for your camera strap if so desired, or can be shortened to desired length.