U4
With Mesh Cover:
The mesh cover assists shot development by adding air resistance to your swing. This improves strength and gives you the ability to deliver more powerful shots.
Flex: Medium
Frame: Graphite
Shaft: Graphite
Length: 10mm Longer
Weight / Grip : Avg. 150g G4
String Advice: G4 (20-30 lbs)
Color: Cool Black
Technology: ISOMETRIC™, AERO+BOX Frame
AERO+BOX Frame:
AERO and BOX frame profiles are combined to give both a faster swing and more solid feel.
ISOMETRIC:
The square-shaped ISOMETRIC frame shape is designed to keep vertical strings at a similar length, as well as the horizontal strings, to produce an expanded sweet spot in all directions.
Increase muscular strength with this all-carbon muscle training racquet.