Premium high-bullet tennis ball engineered for power training and beginner development. Diamond-textured felt surface enhances spin control and durability with reinforced wool/nylon blend construction. Optimized internal pressure system delivers 15% faster rebound than standard training balls. Seamless rubber core ensures consistent bounce on all court surfaces (clay, hard, grass). Professional-grade UV coating resists wear for extended outdoor sessions. Ideal for coach-assisted drills, ball machine practice, and tournament warm-ups. Bulk packaged for team training with moisture-resistant vacuum sealing. Meets ITF Gold Stage specifications for progressive skill development.