The average penis size is 6 to 6 and one half inches.
However, thousands of guys are doing hand exercises and they are starting to push up the average by adding anything from 1-4" of permanent size gains.
What type of equipment do you need to do hand exercises? You need nothing that is expensive, and you certainly don't need any pills, creams, extenders, of lotions.
All you are going to need is some free time, your hand, and some water based lubricant.
Water based is more of a precaution, because oil based substances tend to be made of poorer ingredients that you don't really want to be absorbed in to the skin on your shaft.
The other necessary item is a wash cloth and some warm water.
This is used to warm up the ligaments and tissues in the penis to prevent any soreness in case you go overboard during one of your workout sessions.
Do these exercises make me harder or give me greater stamina? Harder does happen just as a result of pushing fresh oxygen rich blood into your manhood on a more consistent basis.
This pushes fresh oxygen against the tissue and make it stronger, resulting in harder erections when you are aroused.
Stamina increases happen when you include certain movements while you are doing your normal work outs.
You can greatly control the timing of your orgasm with some relative simple moves.
Some people do experience much harder erections and increase stamina greatly as compared to their abilities before they started.