Precise measurement for perfect alignment when hanging shelves, cabinets or photos. The high precision bubble design provides quick and accurate readings for a variety of tasks. Multiple functions to meet different measurement needs. Measure horizontal level, verticality, inclination, and a 45-degree angle with a practical and versatile design. Durable ABS construction resists deformation and damage for long term accuracy. The air bubble chamber uses anti-freezing and resistant materials, which are not easy to break or leak. Sophisticated craftsmanship with a compact pocket size that is easy to identify and carry. The smooth flat surface resists scratches and rust, and bright colors enhance visibility. Use scenarios - Hang shelves or cabinets in the kitchen, living room, or garage with quick, reliable leveling. - Align pictures or artwork to ensure perfectly straight displays. - Use during DIY furniture assembly or home improvement projects to verify levels and angles quickly.