This professional filling knife excels in both handle and blade performance. The chunky, comfortable handle is made from Pakka hardwood, which is a material of exceptional quality. Using advanced processes, carefully selected hardwood veneers are impregnated with phenolic themosetting resins. Under intense heat and pressure, multiple laters of these treated hardwoods are fused into a single, solid block of material that is extremely durable and moisture resistant. The handle has a premium, shiny finish that is a natural result of the production process, and not the result of a varnish or lacquer, so the it won't be affected by paint and varnish strippers. The blade is made from a rust-resistant stainless steel, and is specially processed to achieve ultimate flexibility. This is rare, and most other filling knives on the market can either offer flexibility or rust-resistance - not both. The product comes with a lifetime guarantee.