Louisville Slugger Junior Soft Baseball Bat CATALYST BT 78cm, 580g average Mid-balance High rebound achieved with 100% carbon fiber material. Complete Catalyst design. Lightweight swing balance due to double carbon layers in the taper section. Material: 100% carbon fiber Catalyst Technology Carbon belt installed The grip has been re-wrapped with a new one. There are some scratches due to use, so please understand that this is a used item.