CobraTec Knives Trapper Hidden Release Automatic Folding Knife 3.12in D2 Steel Drop Point Olivewood Handle. Push the bolster up to deploy the blade and push the bolster up again to release the lock. The trapper design 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 3.12in Automatic Folding Knife: Manufacturer: CobraTec Knives Blade Length: 3.12 in Overall Length: 7.37 in Blade Material: D2 Serrated: Plain Knife Application: Pocket Knife Blade Shape: Drop Point Handle Length: 4.25 in Blade Finish: Satin Weight: 4 oz Opening Method: Hidden Release Automatic Closed Length: 4.25 in Features of CobraTec Knives Trapper Hidden Release 3.12in Automatic Folding Knife: Hidden Bolster Release Mechanism: This knife incorporates a concealed bolster release mechanism ensuring secure handling and added safety. The bolster release is seamlessly integrated into the handle design reducing the risk of accidental openings while maintaining swift and smooth deployment of the blade. Blade Material: The blade of the Trapper Golden Horn knife is crafted from D2 steel a high-carbon tool steel known for its exceptional hardness and edge retention. Maintenance: Maintaining this knife is relatively straightforward with most models allowing for easy cleaning lubrication and blade sharpening. D2 steel while durable requires maintenance to maintain its sharpness. It is a must to keep your blade dry clean and lubricated when not in use. Package Contents: CobraTec Knives Trapper Hidden Release 3.12in Automatic Folding Knife CobraTec Knives CTTHROLW: Trapper Hidden Release Automatic Folding Knife 3.12in D2 Steel Clip Point Olivewood Handle