Tac Force 4in. Mirror Finish A/O SS blade. Shark Fold Knife is made using incredibly durable materials and construction that will keep you slicing and cutting for years to come. Specifications for Tac Force 4in. Shark Fold Knife: Manufacturer: TAC Force Closed Length: 3.875 in Blade Material: Steel Serrated: Plain Knife Application: Folding Blade Handle Finish: Mirror Polished Blade Finish: Stainless Steel Additional Features: Glass Breaker Quantity: 1 Package Contents: Tac Force 4in. Shark Fold Knife Tac Force TF573C: 4in. Mirror Finish A/O SS blade