the proper way to place a band on a set of testicles take one finger and your thumb through pull down on the sack take your other index finger hook the nut on top keep ahold of it grab the sag roll the band up on the other side push that nut through do the opposite on the other side grab both testicles don't let them slip through grab both testicles grab the band grab the crimp pull that hole tight take the tool insert the rubber into the into the opening take your rope hook it through the rubber band ratchet make sure your crimp is properly in the hole on the tool ratchet pull up couple more turns crimp take your knife cut the band that is the proper procedure release trailer