Adult Premium Leather Sex Sling Swing SW4. Another addition in the range of Adult products, Sex Sling swing, TOP QUALITY leather sling/swing made from PREMIUM QUALITY BLACK leather with the option of different color detailing. It is made of quality leather. The nickel plated rivets are inserted on each joint for making it strengthen. Its features are:- Premium Quality Leather cow hide. Shinning / Polish Hardware. Color Detailing Option. Chain/rope is not included.