This penis extension is a functional enhancer that adds stimulation to penetration. The sleeve is made of a super stretchy silicone material that will fit comfortably on your cock. The sleeve is reversible so you can use either the nubs or the ticklers. Either way both you and your partner will recieve stimulation during sex. You can also place the sleeve over your favorite vibrator or dildo to enhance pleasure for you and/or your partner. The sleeve measures 5.5" in total length and 1.5" in width.