Material and durability: Green acrylic body with a plastic case, housing a clear liquid. The durable, strong case is designed to provide a long service life. Accurate levelling: This spirit bubble level is built for precise levelling in both indoor and outdoor use, helping you achieve true horizontality where it matters. Size and stability: 60 mm in diameter; the larger size enables stable positioning and more reliable levelling readings. Applications: Widely used for adjusting LCD mounts, setting up set boxes, hanging items, platform levelling, and other tasks requiring accurate alignment. Use scenarios: Mounting a wallmounted LCD monitor or TV bracket to ensure a level install. Positioning a set box or AV equipment on a shelf or rack with stable, level readings. Hanging shelves or panels and leveling a work platform during installation for precise alignment.