Medteh Russian Lever Lock Automatic Knife Walnut Satin. Heres an item you don't see too often: a russian 21cm - 8" lever open mechanism and back lock. This knife is very strong and very sharp. Fits well in your hand with a solid feel. Scale - walnut and steel 95x18. Overall Length: 22cm - 8.5" Blade length: 9cm - 4" Blade thickness: 2,5mm - 0.1" Weight: 170 gr Blade Material: Stainless steel 95x18 Frame Material: stainless steel.