The Performance Silicone Glo Pro Cock Ring is a soft, stretchy ring crafted for maximum comfort. The flat design fits around your shaft for no-slip performance. The Glo Pro's body safe, hypoallergenic silicone features a satin smooth glow in the dark design. It's easy to clean: just wash with soap and water and let air-dry. Ultrasilk™ smooth and made with Puria™ silicone.1.75 Inch Outer Diameter, 1.5 Inch Inner Diameter, 0.5 Inch WidthStrong and StretchyFlat & Matte, Stays Where You Put ItHypoallergenicMade from Satin Smooth, Body Safe Silicone. Contains no Fragrances, Phthalates, Paraffins or Latex