... Len Dia: 5.8 mm Portable handheld Industry Endoscope Borescope,Rotational Flexible borescope endoscope with 2 way rotatable probe is innovative product ... Adjustable brightness on lens-mounted LED lights8.Three useful optional accessories included:hook,mirror and magnet twisted on the len9.Simple ... Plants,Equipment Maintenance,HVAC,Plumbing,Manufacturing Building Inspection Industry Endoscope Borescope