Say, have you been dying to test out the theory of magnetic energy while having sex? If yes, you're about to be very happy. If the thought had never even crossed your mind, you're not alone! The point is, with Rouge's Stainless Steel Magnetic Ball Stretcher, you can get sexy with science. We swear! We'd like to state from the get-go that this is an advanced tool. It's heavy, at 8.9oz/253g, so if you're a ball stretching newcomer, this one's probably not for you. Here's how it works. The Stretcher will come to you in one piece, thanks to the power of magnetic energy. Approximately 1 quarter of the ring snaps off and on - you'll make use of this feature as you put on the Stretcher. Position the hand portion over the base of your/their balls, and carefully replace the piece you've removed. Once on, you or your partner will get the sexy benefit of lots of constriction and an advanced level stretch/drag effect. For some men, this slows ejaculation and intensifies orgasm when the time finally comes - other's just like the sexy tug. In hygienic high end stainless steel, the Ball Stretcher is hypoallergenic and body safe, not to mention extremely durable. Compatible with any favorite lube. The Stainless Steel Magnetic Ball Stretcher measures 2.4"/6.1cm in total diameter, 1.4"/3.6cm in inner diameter, and it's about .6"/1.5cm tall.