Only one hand is needed for fast, easy attachment of book jacket covers (book pockets, too!). Simply pull the trigger and roll out the tape. Extended guide wheel allows exact positioning of tape. Gun applies only the desired length while the liner is simultaneously rewound. Use with 1/2" or 3/4" permanent Scotch 924 adhesive transfer tape and Scotch ATG Gold Acid Free tapes (listed below). It's thin and virtually invisible. Touch of the finger triggers quick, controlled application of tape. No mess or cleanup. Saves time and effort. Applies adhesive transfer tape while simultaneously removing and rewinding the liner. Heavy-duty construction for high volume usage. Tape comes in 36' rolls. Wt. 5 lbs. Ships ground.