Smoother

Noun

 * 1) A device used to smooth something

Thesaurus
abradant, abrasive, buff, buffer, burnish, calender, chamois, drag, glazer, goose, grader, harrow, iron, lawn-roller, mangle, plane, polish, polisher, press, roller, rolling pin, sander, sleeker, slicker, smooth, steamroller, trowel, wringer