Will trade large rocks for large leaves

I have an excess of large rocks and am in need of large leaves.

1 large leaf for a large rock. Can give as many as you'd like, I'll match the number you give with large rocks. 

Currently 9 large rocks avaliable.

I can give you 15 large branches for the rocks?

I've set up a trade, hope it's okay for just ten for ten? I would like to keep some for leaves