The Universal Gates Of Hell from Cal Exotics. Adjustable leather harness with three interchangeable rubber rings. Leather (strap) Rubber (rings) Steel with plating (snaps). 9x .5/23 cm x 1 cm (leather strap). 1.75/4 cm (small rubber ring), 2/5 cm (medium rubber ring), 2.5/6 cm (large rubber ring).