Dripping scent only during day, Wildlife Research Centers Super Charged Scrape-Dripper Combo trains bucks to come in when youre hunting, not during the middle of the night. The dispenser operates for two to three weeks using 4 oz. of scent, depending on temperature swings. It requires no batteries and shuts off during wet weather to save your valuable scent for maximum effectiveness. Gradual scent intensification drives bucks into a frenzy. Combo includes a Magnum Scrape-Dripper and a 4-oz. bottle of scent. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Baits & Lures.