Double the fun with the Nutt Job Set by Sport Fucker™. This set includes two rings made of our incredibly popular super soft silicone. If you've ever felt our Muscle Ring or Muscle Ball Stretcher, you know that words cannot describe the feeling of this 100% silicone (not TPR or a lightweight blend) against your skin. Silky, stretchy and firm! Use in any combination of cockring and/or ball stretcher and get off! Material: Silicone Dimensions: Ring 1: 1" interior diameter (unstretched) . 3/4" wide. Ring 2: 1" interior diameter (unstretched) . 1 1/8" wide.