This innovative new DI2-Clip is a specific accessory for Deda's stunning new stem that offers a clean, smart and easy to use solution to help make Shimano's DI2 system a more integrated experience. No tools or straps are required to install the clip thanks to the simple plug-in system that has been used. Made from a thermoplastic material for lightness and durability. This only fits the Deda Superzero Stem Features: Compatible with Deda Superzero Stems only Material: Thermoplastic material Handlebar Diameter: 31.7mm Finish: Black Weight: 7g