Ultra-Lightweight Large Locking Blade. The Sentinel is the Swiss Army Knife for those of you who like to stick to the basics. You know that in so many cases, a single lock blade is the only tool you really need. And the Sentinel delivers a robust, incredibly sharp blade in a cleanly designed, ultra-lightweight package. Enjoy! Tools: large blade - tweezers - toothpick - key ring. Key features: 4 functions - Large lock blade - Lightweight. Dimensions: Height 12.5 mm - Length 111 mm - Weight 71 g. Color: Black