8270 Rough Terrain Crane is a TECHNIC set released in 2007. It contains 106 pieces.
This is a description taken from LEGO.com. Do not modify it.
Heavy lifting on tough terrain!
No matter where you want to build, the Rough Terrain Crane is ready to help with realistic functions! Flip down the outriggers to stabilize the load and extend the powerful telescoping boom! Rotate the base and activate the working controls on the back to lower the winch and raise the payload. Entire crane rotates 360 degrees! Includes instructions to rebuild into an 8.5" (22cm) high Tower Crane! Authentic model for skilled builders!