sara, i put rubber o-rings around my balls and then hit them with a paddle i made from a long handled brush. it feels very good and aches while i jack off. i also hang weights 10 lbs. at first while i jackoff and near the end add 5 or 10 more lbs. and wait till my balls are really aching then i cum. i love it and do it almost every day. i have some pics if interested.