The Wilson Triniti Pro is designed with optimal durability in mind. Regarding play characteristics, the ball offers durability in terms of lifespan and consistency. Thanks to the Engage Core, the ball retains a fresh feel four times longer compared to a 'standard' tennis ball, albeit feeling slightly harder during play. Additionally, the packaging of the Wilson Triniti Pro is environmentally friendly, being made of fully recyclable paper. This pack contains 4 balls.