Corral your cock (or a cock you're in charge of tonight) into hard-as-rock obedience with Firefly's Halo, a simple user friendly loop in glowing silicone.
 
Small is perfect for advanced c-ring users- the firmer grip creates a more aggressive sensation. If you're truly advanced and feeling brave, it can be looped over base and balls for a double constriction effect. Either way, tension around the penis helps keep blood right where it should be- in your erection

Medium is perfect for novice c-ring users- it's not too loose and not too tight. If you're truly advanced and feeling brave, it can be looped over base and balls for a double constriction effect. Either way, tension around the penis helps keep blood right where it should be- in your erection.
 
Large is perfect for beginner c-ring users- the looser grip is easier to work with. Alternatively, it can be looped over base and balls for a double constriction effect. Either way, tension around the penis helps keep blood right where it should be- in your erection

In hypoallergenic body safe silicone, Halo cleans easily using warm soapy water or a good toy care fluid/foam. This cock ring is compatible with any favorite water based lubricant- please don't be tempted to use a silicone lube, it can break down the material.