iStim Probe x1 + Quick Guide x1 + 1 Zip-Lock Carrying bag iStim probe can be used to train the muscle of bladder control system and tighten the pelvic floor. It's a easy and effective way to fight with the incontinence and help you improve the intimacy life, too It's lightweight and slimline design[How to use] 1. Connect the iStim Probe with TENS/EMS (electrical muscle stimulation) units or pelvic floor exercisers by the lead wire. 2. Then put the iStim probe in (can use the lubricant to make it smooth)3. Start to train by using kegel exercise Probe can also be independently used without the machine.