I no longer have any use for this split-prism focusing screen made by Haoda since I sold my 20D. It's in the same condition as I received it and it works great. It comes with all its original tools and shims, ready to be used by the next person with a 20D or 30D.
Price dropped to $45 including shipping and Paypal or send me your best offer (I paid $77 for it new).