... is anti-skidding design.4.surface is military level hard anodic oxidation, hard wear-resisting, high ... 50% light(500ma),triple is 25% light(250mA),for the forth time is 10% light(100mA)Turn ... right once is SOS(for help),twice is 1HZ blink(slow flash), ... are damaged or missing, then no compensation, thanks for co-operation!Friendly Reminder:Generally ,international Express Asia, ...