Medteh Russian Lever Lock Double Bolster Walnut Damascus Automatic Knife. Overall Length: 21cm - 8" Blade length: 9cm - 4" Blade thickness: 2,5mm - 0.1" Weight: 150 gr Blade Material: Stainless steel 95x18 Handle Material: Walnut Frame Material: stainless steel Made in: Russia. These automatic knives are highly collectable.