IP66 rated 38.0mm waterproof and vandal resistant rugged brushed 316L stainless steel industrial optical trackball for marine console simulation or mining environment or industrial console, this is a IK09 rated vandal resistant, and rugged sealed panel-mounted trackball. It is specially designed to meet IP65 specifications andit’s anti-corrosion 316L stainless steel which covered the shortage of normal 304 stainless steel for corrosion spray or salt mist environment, which means it is resistant to harsh environment with salt mist, corrosion spray, dirt, dust, water, ice, low temperature, chemical liquids, corrosives, disinfectants, oil, etc.