The SKIL 12" digital level is compact, easy to use, and packed with features, so it's perfect for hanging pictures, putting up shelves, and lots of other DIY projects around the house. The high-contrast blue vials are highly accurate and easy to see. The digital LCD screen is backlit, so you can read it from any perspective, and adjusts to the correct orientation however you hold it. Arrows and optional audible tones guide you to the perfect angle, and the Hold feature allows you to freeze the value of one angle so you can check it against another. The Memory feature lets you store 10 values and reference them later. A magnetic edge makes the level especially easy to use one-handed.