Training Cock Ring:
S size: Solid Silicone + 1pc Steel Ball, Inner diameter: 32mm, Outer diameter: 38mm, Thickness: 6mm, About 35g
M size: Solid Silicone + 2pc Steel Ball, Inner diameter: 32mm, Outer diameter: 38mm, Thickness: 6mm, About 70g
L size: Solid Silicone + 3pc Steel Ball, Inner diameter: 32mm, Outer diameter: 38mm, Thickness: 6mm, About 110g