The Bluestar A2 is avaible with sponge hardness of 50°. The technology that makes the small-pored sponge of the BlueStar so special is, of course, also used with these versions: Optimised Energy Sponge (OPTE) sets standards in terms of elasticity and shock absorbing level. Development, production and processing of the BlueStar meet the highest requirements, which is why this is the epitome of the rubbers. Now also available with slightly softer sponge hardness, which is ideal for most advanced players that play up to professional level.

Technology: OPTE sponge technology, extremely catapult-strong, dynamic, fine-pored 50° sponge.
Character: Very dynamic, super speed and spin characteristics
Recommendation: For attacking and offensive players
Sponge thickness: 2.0/max