Dawkins is spot on for the handles.
From the Benchmade website:
Features of the 42 Bali-Song®
Blade Length: 4.2"
Blade Thickness: 0.125"
Features of the 49-01 American Kris Balisong
Blade Length: 4.25"
Blade Thickness: 0.125"
For those still thinking of ordering one, don't bother, they're sold out. Your best shot now is to find a dealer that ordered one and buy it from them.