what all forms are required for h1 extension

[stxvr]

Could you help me in seeing the actual H1B extension form? I want to see that what all details are required in the H1B extention form?
Which form number ? and from where I can see it??

 

[sshark9999]

you need the I129

http://www.uscis.gov/files/form/i-129instr.pdf