It’s an upside down whip club, SB Faceplate and Power Whip. Work on ‘torquing backswings’, downswing pops and resisted rotations for more speed!
Here is a great series of drills to make the most out of the Drag-N-Fly:
Drill 1:
Drill 2:
Drill 3:
Drill 4:
Drill 5: