Head size: 100sq"
Average Unstrung Weight: 300g
Unstrung Balance: 320mm
Unstrung Swing Weight: Approx, 280
String Pattern: 16x19
Stiffness ratings are not made for Donnay Racquets, as they feature Dynamic Stiffness
Grip: Cushion
Rec. String Tension: 45lbs (+/- 10)
Beam Width: 20/27/24mm
Length: 27
Technology: Hexa XēneCore

The Formula Octacore, more power, feel, and control, -the feeling of wood but the power of graphite and fits all player levels from beginners trying to make contact with the string bed and keep shots in the court to advanced baseline bashers. It's plush and comfortable with tremendous power and accuracy due to the six cores and, of course, Donnay's signature arm-protection comfort.

Similar in specs Pure Drive and Aero pro in head size and shape, stationary weight, balance and beam width in specifications, but the real difference is the plush feeling of wood at the core.