I've used this before on my wife and she loved it. You're right about the size, but you can use a smaller sleeve and then put this one over it. Not only will it make it stiffer and heavier, but it will hold on very well and might even make it thicker. Another option is to buy two, cut the sleeve off and then insert the cut sleeve into the extension and then your penis. However, this might move around, but it works and relatively well.