TB SPEED PRO *4

FELT
This ball is made of 63% natural felt and neutral felt, making it very durable

CORE
This ball has a core made from natural rubber. This provides a quality bounce and excellent durability.
PACKAGING
58.5 g
ITF standard between 56 g and 59.4 g

DIAMETER

6.55 centimeters
ITF standard between 6.54 centimeters and 6.86 centimeters

BOUNCE HEIGHT

143 cm (ball dropped from a height of 2.54 m)
ITF standard between 135 cm and 147 cm

BALL DEFORMATION

High viscosity index for a more comfortable ball.
The viscosity index is calculated based on the ball deformation measurements.

TEST PRODUCT

Before being taken out on the court, our balls undergo several tests. Laboratory tests validate the following elements (weight, diameter, compression and rebound height). Field tests are carried out with our partner testers in order to evaluate our products for: playing sensations experienced, liveliness, control, durability and rebound stability. These balls are approved by the ITF (International Tennis Federation), the FFT (French Tennis Federation), and the FIT (Italian Tennis Federation).