Comfortable ball for all your training sessions.---specs--- Packaging Ball sold individually DURABLE Because the ball leaks air over time, strokes lose some of their power. The more air the ball can retain, the more durable it is. This is why professional tennis players change balls every nine games. The air inside the ball offers a better hitting sensation. Product Testing Ball tested and approved by our product engineers and our certified club trainers. PACKAGING Ball sold individually Composition Structure : 100.0% Rubber - Synthetic\r\nOuter fabric : 70.0% Acrylic , Outer fabric : 15.0% Wool, Outer fabric : 15.0% Polyamide 6.6 Storage Instructions Avoid major temperature fluctuations, which have a strong impact on ball performance Guarantee 2 Years---/specs------catchline---This pressureless, comfy, durable ball is perfect for club training sessions.---/catchline------features--- Bounce quality The SUPPLE rubber offers moderately high bounce and a comfortable ball Abrasion resistant Even without pressure, this ball's quality makes it very durable. Speed High-quality rubber provides a fast ball during rallies. ---/features------made_for---tennis players training on an occasional basis looking for a very comfortable and durable ball. ---/made_for---