Rock solid mega ring green glow

From Doc Johnson, This classic circle shape has an additional knob that applies pressure behind the scrotum for an ultimate climax. The Mega Ring's phthalate-free, body-safe, glow-in-the-dark material keeps the bedroom aglow as long as you last. Approximate Product Dimensions: C-Ring, Width/Diameter: 2 in. (5.1 cm), Unstretched Inner Diameter: 0.9 in. (23 mm), Depth: 0.7 in. (18 mm)