The Conquest Stink Stick has a premium fiberglass "flow-through" wick that allows more air flow and scent disbursement. The tapered thread (instead of o-rings) will keep the air out and keep the scent fresh. The leak-free design is safe to keep in your pack so no more mess! The Stink Stick even works in sub-freezing temperatures. The bright orange color of the Stink Stick allows you to use this as a yardage or trail marker. FeaturesGreat scent dispensing toolHigh air flow; more scent releasedTapered threads keep scent in; air outLeak-free design