Lock in a big veiny vibrating erection!This comfortable and easy double cock ring allows you to constrict your cock and balls in a variety of configurations. The stretchy rings do a great job of keeping blood from flowing back out of your cock, helping create a bigger veinier erection. You can use it around the base of your cock and balls, the base of your cock, or your scrotum. The vibrator will vibrate against you balls and the base of your cock, keeping you in a constant state of excitement.If you want to use it as a ball stretcher you can stack the two rings on your scrotum, and they'll try to push apart. It makes a great vibrating ball stretcher.The built-in battery will give you up to 40 minutes of vibrations, but the cock rings will last much longer.Vibrating Double Cock and Ball Ring Specs and Benefits:Size: Each ring measures 1 inch in diameter unstretchedMaterial: TPR, ABS plasticColor: BlackNote: Cock ring provides up to 40 minutes of vibrationThe cock ring helps men maintain a longer-lasting, harder erectionRings can be placed around cock and balls, both on cock, or both on balls