This is a grand slam version of Hurricane Long 5, to celebrate Ma Long's achievement.
Better material and workmanship compare to normal Hurricane Long 5
 
Hurricane Long 5 adopts 7-ply aryl-carbon fiberboard with Pith-Film tech, offering great power and stable control. It is continuing Ma Long’s quick and changeable style featuring swift shift between attack and defense. In the 2014, a new era of new material T.T.balls, Hurricane Long 5 blade was the top choice of Ma Long.
FL:
Type: OFF++
Ply: 5+2AC
Weight: 89±3 (g)
Thickness: 5.9±0.1 (mm)