THIS IS A CASTOR BASED LURE WITH A SMALL AMOUNT OF BEAVER OIL AND OTHER INGREDIENTS THAT REALLY INCREASE THE CALLING POWER OF THIS LURE. USE A SMALL AMOUNT. THIS LURE WILL PULL BEAVER A LONG WAY IF CONDITIONS ARE RIGHT. MY PARTNER TRAPPER FOR THE DNR AND USED THIS LURE TO TAKE LARGE NUMBERS OF TROUBLE BEAVER.