Fishbowl comes with 40 Stay Hard Glow Nutz in blue. <br><br> Glo Nutz are made from pure body safe elastomer. This ring is soft and ultra stretchy. It is also incredibly strong so it will not easily snap, making it the preferred cockring of real men. <br><br> Glow-in-the-Dark! <br><br> Measurements: <br> Thickness of ring: .44" (1.12 cm) <br> Inner Diameter: .78" (1.98 cm) <br> Outer Diameter: 1.7" (4.32 cm)