STS9 bassist David Murphy will auction off several of his most prized basses to benefit Rock Against Cancer, an organization which brings music to kids with cancer. Murphy was diagnosed with a cancerous tumor in January of 2011, forcing the band to cancel tour dates while he underwent surgery and an extended period of recovery.

A statement from Murphy reads:

Greetings all, I am auctioning off a couple of basses that are near and dear to my heart. These basses have been a part of STS9 through many years of touring, in the studio for the making of Artifact & Peaceblaster, and multiple recent “Axe the Cables” shows. A portion of the proceeds from these auctions will go to Rock Against Cancer which helps bring music to kids with cancer. Here’s your chance to own a piece, or two, of STS9 history and raise money for a great cause. Thanks in advance for your support. – Murph

The basses being offered include a Modulus Quantum 5 played by Murphy live on stage from 2003-2010, as well as on albums Artifact, Peaceblaster, Ad Explorata. The second bass is a Modulus Quantum 5 Fretless, played live on stage from 2004-present, including all “Axe The Cables” shows and albums Artifact, and Peaceblaster.

To bid on the basses visit the auction page here.