Viking Tactics Black. They serve an important function in that they allow you to have a secure attachment but also allow you to carry your rifle or shotgun with a solid attachment to your body that you can control and use at any moment. The Swivels offer a flexible connection with the weapons in a way that allows you to weave the sling into your body creating a rock solid connection. They were designed using a form fitting notch on the back. This avoids a sharp bend or hook point that can put the users fingers on the line. Their universal fit also allows them to be used with many different types of materials such as polymers and leather. Specifications for Viking Tactics Swivel: Manufacturer: Viking Tactics Color: Black Size: 1 in Package Contents: Viking Tactics Swivel Viking Tactics Swivel: Swivel Black