Manufacturer: Butterfly Name: Butterfly Liu Shiwen Speed: 93 Control: 96 Stiffness: 37 Hardness: 41 Frequency (Hz):   Thickness (mm): 5,6 Weight (g): 82 Length (mm):   Width (mm):   Layers: 7 Layer Compostition: Limba - ZLF - x - X - x - ZLF - Limba Aktion: Ändern