*Inner Diameter: Big one:3.5cm/1.4in; Middle one:3.1cm/1.2in; Small one:2.6cm/1in *Outer diameter: Big one:4.6cm/1.8in; Middle one:4.1cm/1.6in; Small one:3.6cm/1.4in *Item Fabric: Silica Gel *Color: Black; Luminous *Description: Sexy Male, Transparent, Soft, High Elastic, Underwear, Thong C-strap Ring, Circle *Package Contents: 3PCS cock rings(three sizes) Notes: 1, The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2, Please allow slight manual measurement deviation for the data. On Mar 8, 2024 at 00:45:22 PST, seller added the following information: