4" Flexible carbon steel blade, Ergo-Grip taping knife with steel head. The ergonomic design reduces muscle fatigue and strain by eliminating pressure points when scraping and taping. Soft rubber-like material Santoprene, maximizes grip, cleans easily and is resistant to solvents. High-carbon die-cast steel head with a maximum flat hammer head surface and a perfect radius that helps to correctly set nail heads. Full tang blade, perfectly ground, ensures optimum flexibility and even distribution of compounds.