Touch of Destiny All Black Marble Swinguard Automatic Lever Lock Stiletto Knife. The knives are lever lock however they have a feature unique from other lever locks: a stiletto-like bolster that springs up and into place horizontally when the blade is deployed and retracts to natural position as the blade is retracted. The bottom bolster is angled toward the blade which provides stable grip. Each knife comes with its own black nylon sheath for safe storage and convenient carry. Overall Length: 8.12 Inches (Open). Weight: 0.3 lbs.