Premier Spray Sense Refill Kit includes two of the Spray Sense Citronella Refill (85gm each)- about 300 sprays that refill canister for All Citronella Systems. It works with Gentle Spray, Spray Commander, Spray Barrier and Virtual Fence products. Approximately 12 collar refills per canister. Also, single 6-volt, Long Lasting Alkaline Batteries. For use in all Premier citronella collar product including the following Premier pet products: Gentle Spray Citronella Anti-Bark Collar The most effective and human solution to nuisance barking. Spray Commander/Virtual Barrier Indoor barrier system that effectively keeps your pet away from off-limit areas inside your home. Virtual Fence Outdoor containment system that gives your dog freedom and safety within your property boundaries without fences, chains or kennels. Buy this exclusive refill kit and save money when you purchase more today.