The core material is PU (polyurethane) and the ball type is suitable for slowpitch.

Number of Items in Set: 12
Compression Hardness: 300
Size: 11 in
Color: Optic Yellow
COR: 0.52
Material: Synthetic Leather
MPN: 4A-069Y
Stitching Method: Red Seam
Suitable For: Tournament Play
Brand: Dudley
Association: USA Softball
Ball Type: Slowpitch Ball
Core Material: PU (Polyurethane)
Number in Pack: 12
Model: Dudley Thunder Sy
Sport/Activity: Softball