High-performance, high-composite youth bat, the CATALYST model. - Model: CATALYST BT (WTLJJR16B) - Balance: Middle Balance - Length: 78 cm - Weight: 580 g - Barrel Diameter: 2.9 inches - Brand: Louisville Slugger - Intended Use: Youth Used for about 4 years in youth baseball. Please note that there are scratches and dirt. Thank you for viewing.