Transducer from Wolf Tooth's patented CAMO system. It is only compatible with the CAMO drift. It is based on the English name Chain and Material Optimization. It has several advantages over the classic. Perfect chainline for precise shifting and long life Optimum material utilization in weight/strength/durability ratio Cheaper price per derailleur Quick and easy replacement with only five screws. No need to dismantle the handle. The threads for the screws are already directly in the converter, no nuts. Easy accessibility for replacement, one converter for multiple types of handles Patented drop-stop ramp teeth system that works perfectly and does not need a guide Package includes stainless steel screws. Suitable for 1x9 (in this case we recommend using with a narrower 10-speed chain for a stronger connection to the converter), 1x10 , 1x11 and 1x12 sets. Available in two tooth profiles depending on the Sram x Shimano kit used, see table. Weight: 28t - 25g | 30t - 35g | 32t - 41g | 34t - 48g | 36t - 57g | 38t - 66g Material: 7075-T6 aluminum Made in USA