I agree w/ almost everyone here but especially what ''gutshot'' says , just like any other call or tactic around , sometimes they work and sometimes they don't. I wasnt too thrilled last year w/ my rattle bag from knight & Halewhen I used it. I used it at all times of the day and tried it out for a week straight. I got fed up and got out the real antlers and tried them the week after and rattled inbucks darn near everyday I was out bowhunting.