Hi, I am planning to buy penis extender from the x4labs. please answer my following questions: 1) Please inform me if it has any side effects ?? (like erectile dysfunction or any other side effects????) 2) and is the increase in the length permanent if i stop using it forever after few months.?? 3) my erect length is 5.9-6.0inch and average girth of 4.78inch. full flacid is : 3 in and grith is 4in. (rough estimate) and now when it is hard I could lift 2kg from it. will it remain the same way after i use extender?? 4) and are the long penis ( 8.5in+ ) also hard?? 5) what do pornstars do for extending their penis?? 6) any other suggestions??