FBW SPEC is middle slide action by 1 pitch or 1/2 pitch. The fall speed is faster than CXW, and the fall aciton is vibration.
Fall speed : VBW < CXW < FBW
Weight : 150g, 200g, 300g
Color : Silver, Blue/Pink, Rainbow, Red Gold, Zebra Glow, Red Zebra Glow
Backside Color : Silver, Gold (only Red Gold color)