Knife Handle

I made this part as a replacement for an old kitchen knife whose handle broke, and I took the opportunity to improve it a little by enlarging it and enhancing its grip.
It's green because it's the only filament I have right now, don't judge me.
The holes are not aligned because they are like that on the blade.
I realize as it is it wouldn't be of much use to anyone else, so I'm adding the source file (SketchUp) which you can modify to adapt to your blades.