Empire 6936 1-Inch by 30-Feet power tape has a durable black case that is designed to fit perfectly in hand. It has a lightweight, high strength case that is easy to find on the job, in a drawer or the tool box. Bold clear numbers on the bright yellow tape. Empire Level is the leading designer and producer of levels, squares, layout tools and caution tape in the United States with dominant market share in the retail, contractor supply, and "Do-It-Yourself" markets.