Low density molded foam with a special horizontal segmentation allowing the sling to form to the shoulder. Tacky textured synthetic gripping surface. Very light weight. Swivels have a spring loaded attachment pin that can be secured in a closed position by screwing the threaded cap tight against the swivel body. Swivels have steel sling loops, attachment pins and a cast body.Specifications and Features:Feature 1 - Tacky Textured Synthetic SurfaceFeature 2 - Low Density Molded FoamFeature 3 - Special Horizontal Segmentation that Forms to the ShoulderFeature 4 - LightweightFeature 5 - Swivels Rated to 300 lbs