Detailed Product Description Specifications:- 64 keyboard made of high quality Stainless steel.- Key top style: Plain/non-protuberant rectangular keys, with laser engraved and etched and raised braille on keys are available- Waterproof, dustproof, shake-proof, pickproof, drill-proof, bombproof.- Customized layout;- Key travel: 0.45mm- Force on Keys: 2.5N- Life time:>2,000,000- Protection level: ...