Bestech Knives Tardis Folding Knife 4.5in Closed 3.13in D2 Tool Steel Black/Satin Blade Blue G10 Handle. Pocket clip. Specifications for Bestech Knives Tardis 3.13in Folding Knife: Manufacturer: Bestech Knives Blade Length: 3.13 in Closed Length: 4.5 in Blade Material: D2 Serrated: Plain Knife Application: Folding Blade Handle Material: G10 Blade Finish: Black/Satin Sheath Material: No Sheath Package Contents: Bestech Knives Tardis 3.13in Folding Knife Bestech Knives BG54G: Tardis Folding Knife 4.5in Closed 3.13in D2 Tool Steel Black/Satin Blade Blue G10 Handle