A snap collar offers low-cost protection when you plan to carry your camera on your tripod with a lens attached. This ASC-2 snap collar will snap snugly around the top of your Arca Swiss B2 Ball Head with Quick Release and prevents the ball from flopping to the side and damaging your equipment. It also helps avoid undue stress on the locking mechanism, helping your Arca Swiss B2 Ball Head with Quick Release perform and last longer.