Measurements: Maximum height of the largest line is approximately 2 1/2". Width of largest line is approximately 19 1/2".* Each decal is made of high quality, self-adhesive and waterproof vinyl. * Our vinyl is rated to last 7 years outdoors and even longer indoors. * Decals can be applied to any clean, smooth and flat surface. Put them on your walls, doors, windows - anywhere you want!