MAXXON Cycle Indicator Grip Industry's First & Only!! It is world-first of the kind. It integrates ergonomic grip with indicators Supreme anti-slip grip material made in Germany with durability over 120 degrees (Celsius) or 250 (Fahrenheit), and mechanical abrasive test - over 6000 times Both ends are well protected by alloy rings with easy self-installation Indicator with 15sec auto power-off function, and single indicator with 7000-turns battery life Indicator with invisible chic switch design, and with rain-proof capability