Tretorn X-Trainer 72 Bucket 2for50 integrated into the lacing for

integrated into the lacing for greater protection and stability

and contrast stitching details

With design inspiration taken from the legendary Ultrascendor 7

Drift Defense

Beam width 23-26-23

Tretorn X-Trainer 72 Bucket 2for50 integrated into the lacing forIf youre a coach looking for training balls that last longer than any other ball on the market then the Micro x Trainer balls are definitely for you. Neither pressurised nor permanent pressure, the Tretorn Micro Cellular technology is patented worldwide and recognised by the ITF as the pioneer of a new category of tennis ball. The benefit to you: a highly playable ball that does not lose bounce or performance over time. The X Trainer Training balls