The Fuse is a 12" long and 1" wide scent wick that rolls up inside the rugged canister. The canister has No-Leak O-Rings to prevent leakage of your favorite scent. The Fuse comes with a small container of Doe in Estrus Urine called, Igniter. The same urine used in Buck Bomb cans. The Fuse is perfect for use with othe buck Bomb products as well.