The Wing is shorter in length and features pronounced angles. The Wing .8 has the least amount of traction out of any P5 skim fin, the 1.2 is looser than the stock 1 tail fin and the 1.5 has a super aggressive and snappy feel.
*Includes ribs and 1.25" screws
https://www.phase5boards.com/blogs/phase-5-wakesurfers-blog/phase-5-finology