MSI XL Trecento Stormbound Stair Tread Eased EdgeFinishing molding for XL Trecento Stormbound Stair Tread Eased Edge MSI XL Trecento Stormbound Stair Tread Eased Edge covers the expansion gap, transitions floor to wall, or terminates a flooring run with the matching finishing profile. What distinguishes a finished flooring install from a builder grade one is precisely this kind of matched trim work at the transitions, which is why this molding earns its specification. Color matched run to run with