Oil-treated Palmyra fill, 4” trim. Low initial cost but low performance makes it costly, overall. Bristles lay over, matt & shed. It’s time to use better sweeps!! Popular before synthetics were available. Use 15/16” or 1-1/8” diameter metal threaded handles - sold separately. All sweeps 24” or larger should always use our #HB-M106 brace. 12/Ctn