T-Jak TJ-104D Drywall Kit with T-Jak, 2-Foot Extension and Two Drywall Extension Tabs Ideal for installing kitchen cabinets, ridge rafters, ductwork, and crown molding Designed with screw-on top plate Quick-adjustment knob for easy height configuration Handles up to 400-pounds Includes a 2-foot extensions and 2 drywall extension tabs