Connectors feature Serfas&'; great dual-density design for excellent comfort. The hard inners offer a firm base and the soft outers provide a tacky and comfortable feel. And Connectors are easy to install and super secure, too. Features: Dual Density DesignA(R) w/Hard Inner Shell For Rigidity & Soft Outer Casing Open-End Style For Easy Installation Shock Absorbing Diamond Pattern Reduces Hand Fatigue Specs: Length: 130mm