The B2-FABN Screw-Knob Clamp from Really Right Stuff is a small, lightweight quick release with a knurled knob, which offers a better grip and more clamping pressure onto a plate. The clamp is compatible with many Arca-type camera plates, multi-purpose bars, camera bars, and L-brackets. There are three strap bosses located on the clamp. The first one is located on the opposite side of the screw-knob, and the other two strap bosses are perpendicular to the jaws of the clamp. Therefore, straps can be looped through, and the clamp becomes a convenient way of carrying your camera around your shoulder or your neck.