Blue Line Ultra Stretch Stamina Endurance Ring (2 Pack) - Premium Silicone Exercise Rings for Hand Grip Strength Training, Physical Therapy & Stress Relief - Perfect for Gym, Office & Home Workouts

This set of cock rings can be used individually to enhance an erection for pleasurable penetration, as well as mixed and matched for even more intense cock and ball stimulation. These rings also provide external stimulation for the partner on the receiving end of the penetration.