Free tissue transfer is a useful method to cover soft tissue defects following trauma or tumor excision. At the time of transfer of the pedicle, its status is not investigated. Therefore, kinking of the pedicle can occur, and pedicle injuries can result from surgical instruments. The authors would like to introduce a simple, safe, and effective method to overcome these problems using a Penrose drain. The present method can help reconstructive microsurgeons with the transfer of pedicle vessels through a tunnel without torsion or injury.