Need PC on Sundering Platinum Longbow of Fortitude

http://img144.imageshack.us/img144/592/bow7jg.jpg

In case you cant see
Sundering Platinum Longbow of Fortitude <gold>
Piercing Damage 15-28 (req 9)
Energy -5
Health +30
Armor Penetration 20% (Chance 20%)

Thanks in advance for all replies

errr i forgot 15%^ always on the bow