These are the Pro Nine X4 Composite Practice Baseballs (formerly called the P454). These are long lasting, realistic-feel balls that are ideal for youth leagues or any wet weather practice.

Features

• SEAM: Medium Height Seam
• COVER: Thin Composite
• CENTER: PU & Rubber
• WINDINGS: Wool Blend
• Perfect Practice and Game Ball for Youth Leagues
• Ideal for wet weather
• Last much longer than leather balls
• Realistic feel off the bat
• Sold by the dozen