Ultraviolet navel rings glowing in the dark have recently become very popular though the discovery of UV light began in 1801. Ultraviolet (UV) light is electromagnetic radiation which wavelength is longer than soft X-rays but shorter than the wavelength of visible light. It's called so because the UV spectrum consists of electromagnetic waves with frequencies higher than those which humans identify as the color violet. The ultraviolet spectrum has various effects including some damaging. It's scientifically proved that UV acrylic doesn't contain any harmful chemicals. So you can wear your ultraviolet belly ring and enjoy it without any fear.
Ultra Violet Belly Button Rings, Sexy Navel Rings noticeable at Ultra Violet (UV) Rays. The best solution to attract someones attention at the night club or party. See also
Glow In Dark Navel Rings.