Most of the time the blades come awfully close to the edge of that opening! I agree with MossRpoad, that is an item that would require extreme concern on my part! My question is "Why"? I realize that the plastic chute's typically get torn off easily, are a pain to get thru a narrow gate and are almost always on the wrong side when you are mowing up close to something! As bad as they are to deal with, I still think they have merit!
David from jax