My Dagger messed up my long glove

I was trying out a cosplay character look with the prop Dagger I brought form Hong Kong, and found that the Dagger torn some part of the long black glove. That sort of pissed me off, but at the same time I was very confused, because I didn't see any share anyway on the dagger handle. How in the world did the handle torn my black glove? Gotta figure it out some day some time.