Extendable from 41"- 63" Works with all Major Brand Finishing Boxes Handle is 1 1/4" in diameter Brake Anywhere Design TapeTech Xtender Flat Box Handle 88TTE Attaches to any of the TapeTech or major brand Finishing Boxes and provides control to cleanly sweep the boxes off the joint for a perfect finish.The TapeTech Xtender Handle is an updated version of the original Concorde Xtender Handle. TapeTech integrated the Brake Anywhere design, and eliminated wear issues related to the pinch brake system.