When flooring planks are installed on stair treads, a stair nose provides a curved wrap for a smooth and secure finish. The main purpose of stair nosing is to improve the safety of the staircase. The stair nose protrudes a little over the edge of the tread, allowing some extra space for users to place their feet. The decor of the stair nose is designed to coordinate with your 7 mm vinyl flooring planks and may be cleaned with a damp cloth. For best results, lay out your moldings in the area where they will be installed before installing the flooring planks so you may choose a plank and transition that coordinate best together to meet your desired look.