This listing is for a FSA premium crankset using hollow carbon arms. The crankarms are175mm in length. It uses the flexible 386EVO standard with a 30mm spindle. Comes with 34T and 50T AL7075 chainrings. It weighs in at 591g with chainrings or 421g for the crankarms alone.36-0803BKGXB is an alternative part number if you are looking for more information. 

Thanks for looking and please let me know if you have any questions!