5 Pack, 6", 6TPI, Gold Reciprocating Blade, Designed For Wood, Lenox, Longer Lasting, Reinforced Tooth Design & Titanium Coating Combine To Create The Longest Lasting Blade Ever, Shatter Resistant, Bi-Metal Blades Bend & Resist Breaking & Extend Blade Life, Cuts Faster: Specially Formulated Titanium Edge Improves The Wear Resistance Of The Teeth For Faster Cuts Throughout The Blade's Life.