Penis Sleeves are a lot like penis Extenders. So much so, some extenders had to be put into this category too. But there are many cock sleeves that are actually tube like sleeves that fit over the penis with all kinds of exciting different textures on them and adding girth to the penis. The different models of Penis Sleeves are as follows. Vacuum Penis Sleeves that hold in place with a vacuum suction and are full penis covering sleeves. Like a penis extender, but might only increase girth with all kinds of crazy outside surface textures that make a ribbed condom look smooth. Penis Sleeves with Gland cups or Straps. These will hold in-place by putting the testicles into the rubber pouch, or, running a band around the balls which creates another level of stimulation to the one wearing the sleeve. Textured Penis Sleeves have so many unique textures and outside stimulating surface configurations you just have to look them over and imagine what it would feel like being used on you, or your partner. Vibrating Penis Sleeves have one difference penis extenders do not have. These have a watch battery vibrator, some have a controller with varying speeds vibrators in them. Some vibrators are positioned to be pointed at the clitoris, others on the scrotum, and others its inside the head of the sleeve. Double Penetrating Penis Sleeves have one sleeve and an extra smaller dildo under the sleeve so both vagina and anal sex can simultaneously occur. Clit Stimulating Penis Sleeves will have ticklers or small fingers to rub the clitoris while making love. Some are Penis Cage Penis Sleeves and those can also create a massively ribbed sensation to the lover being penetrated. With over one-hundred and ninety different types to choose from, we know if you're looking for penis sleeves you will find exactly the one you want. Hope I was of help. Thank you for your time