The Victorinox Sentry Swiss Army knife is an extremely pocket-friendly 84mm / 3 1/4" knife with just a single blade.
Size & Weight: The Victorinox Sentry knife is 84mm (3¼") long, 19mm (3/4") wide, and 10mm (0.4") thick. It weighs about 20.9 grams (0.7 oz).
Colors: The Sentry comes in
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