Versatile Set of 4 Sizes - Our level set includes lengths of 4.7 inches Torpedo Level with Magnetic, 16 inches Digital Level with Magnetic, 20 inches Heavy Duty Level with Magnetic and 40inches Spirit Level without Magnetic .It can meet your different usage scenarios MULTI FUNCTION 16inch Digital Level - The spirit bubbles have lights so when you're within 0.015 degrees from level, they light up. This is true for both horizontal and vertical bubble.Press the "hold" button to enter absolute angle mode. The value will hold for easy to read. Press the "REF" button to achieve relative measurement mode High Accuracy - Vials of the level set provide a maximum accuracy of 0.0005-inch/ft, this will allow you to complete your project more perfectly. Easy to read leveling bubbles 45°/90°/180°of 40" level and 90°/180°level of 4.7",16" and 24”level to ensure the accuracy and stability of the levels better Heavy Duty Design - Our level tool has an 10% increased wall thickness and features a double-sided milled aluminum base structure. This construction ensures durability, high strength, wear proof, corrosion resistance, rust-proofing, and avoids deformation over prolonged use Easy to Carry and Store - Comes with the carry bag with a size marker and layering design, it simplifies the process of storing the level and prevents damage caused by friction between tools. You can hang this level set with the hook holes design on the wall when not needed 4-Piece Torpedo Level Set, 4.7", 16", 20", 40" Spirit Level Set with Magnetic, 16inch Digital Level with LCD Display, Shock-Proof Aluminum Alloy Levels with Carrying Bag, Bubble Vials Ruler for 45/90/180 Degree.