The Phantasm Technical Mastery (PTM) 684/710 Lower Package was developed by our design team using the feedback from Phantasm riders worldwide. Riders who are looking speed and agility, but still want great confidence-inspiring stability should look no further than the PTM 684 Lower Combination. This package of PTM 684 Front Wing, PS 400 Rear Stabilizer and 710 Fuse is by far our most all-around performance foil set-up we make.