Ontario Knife Company is proud to introduce one of our all-time best selling folding knives, now reissued as assisted openers with our proprietary Tactical Assisted Opening (T.A.O.) technology and G10 handles. The patent-pending T.A.O. technology featured in the RAT-1A is distributed exclusively through OKC. Manufactured in Taiwan - Overall Length: 8.5 in (21.59 cm) - Blade Length: 3.5 in (8.89 cm) - Blade Material: AUS - 8 - Hardness: 55-56 HRC - Handle Material: G10 - Country of Origin: Taiwan