To maximize the life of this doormat, use this mat in a sheltered area such as a covered porch. Do not expose to direct sunlight or excessive moisture. Some color transfer may occur onto natural stone, concrete or other surfaces if the mat is excessively exposed to the elements. Slight variations in size, color and texture are normal and add special character to each individual mat. Brush, hose down or shake mat regularly to maintain its appearance and minimize dirt and dust build up.