Mercer Culinary Renaissance 6-Piece Forged Knife Block Set, Tempered Glass Block Triple-riveted, ergonomically designed Delrin handle High carbon, no-stain German X50 Cr Mo V15 cutlery steel resists rust, corrosion, and discoloration One-piece precision forged construction for better strength and durability with a full tang that runs the entire lengthof the handle for superior balance Taper-ground edge allows for added stability, easy honing, long lasting sharpness, and increased efficiency when cutting and chopping Limited Lifetime Warranty