In Blender, Stelarc and Nina Sellars underwent surgery to remove biomaterials; from Stelarc's torso and Sellars limbs. The extracted bio-materials, from the bodies of both artists, are housed in a custom built blender of anthropomorphic dimensions. Every few minutes Blender automatically circulates its contents via a pneumatic actuator connected to a system of compressed air pumps. The click of the solenoid switch operating the blending mechanism has been subtly amplified. With added distortion and digital delay, it provides an audible pulse to a liquid body. Blender was first exhibited at the Meat Market Gallery, as part of the TekniKunst 05 Contemporary Technology Festival, Melbourne, 2005.