How do I hang a canvas with this? I feel so stupid!

My son got a canvas print for his birthday, I thought I’d hang it up for him while he’s at school but I feel so dumb, how does this hanger work?

There’s no holes in the metal piece or a mounting hole on the canvas frame. The ends of the metal piece are sharp so do they go into the wall? But then how does the picture hook on?

Before I give up and use a normal picture hook I thought I’d see if anyone here can help me 😃