CobraTec Knives Trapper Hidden Release Automatic Folding Knife 3.12 in Satin D2 Steel Drop Point Plain Blade Stag Stag Handle. The handle is comprised of various textured handles with steel bolsters and comes with a drop point D2 steel blade. Push the bolster up to deploy the blade and push the bolster up again to release the lock. The Trapper has been around for many years and CobraTec is excited to add a bit of modern to this knife by making a hidden release auto. Specifications for CobraTec Knives Trapper Hidden Release 3.12 in OTF Automatic Folding Knife: Manufacturer: CobraTec Knives Blade Material: D2 Steel Serrated: Plain Blade Shape: Drop Point Blade Finish: Satin Blade Grind: Flat Sheath Material: No Sheath Weight: 4 oz Package Contents: CobraTec Knives Trapper Hidden Release 3.12 in OTF Automatic Folding Knife