Are you always in the gym trying to pump your arms up. Did you know you could do the same with your penis. Penis pumps work a little like weights work for muscle training. You have to use your penis pump often if you want real results. Also, over training your penis will cause damage, so use caution. A good schedule would be 3 times a week for 20 minutes. Simply insert your erect penis in the pump, and pump it up. Always stay in the comfort zone, if it hurts you're pumping too much. We also carry penis pumps for men with erectile dysfunction. Remember to buy a pump base cock ring with your penis pump if you want to use it as an erection aid.