I believe that is a Satellite Titan. The ferrule color indicates the grain weight, but I have forgotten the color/weight match. Seems that blue ferrule was 125 grain. Not sure about yellow, although you seem to know it is 175 grain. I used them for two seasons back when I shot compounds. Good broadhead. Had two pass thrus on the only two deer I ever shot with them. Originally purchased them because they were plentiful (Wal-Mart and Academy carried them), they were very affordable, and they looked deadly. Which they are. They were razor sharp out of the box. I only used the two blade and did not use the bleeders either. Haven't seen them around in the past few years. If you've got some, screw 'em in and let 'em fly. Good luck.