Boker Plus USA Kwaiken D/A OTF Automatic Knife Blue D2 Switchblade. Brand: Boker Plus Type: Pocket Knives Overall Length: 8.19 in Blade Length: 3.19 in Blade Thickness: 0.11 in Weight: 3.46 oz Designer: Lucas Burnley Blade Material: D2 Handle Material: Aluminum Opening: Automatic Lock Type: OTF Color: Blue Item Number: 06EX550