The unique octagonal design enhanced stability during use, slips or falls for safe operate Made from ABS for long lasting durability, suitable for different construction environments and frequent use Features a powerful magnet base that securely attaches to ceiling joists for stable measurements, enhancing work efficiency during construction and tiling projects Equipped with two levels bubble (base and top) for precisely horizontal measurements, ensuring accuracy in various renovation tasks Provides clear double sided markings for versatile measuring applications, simplifying process and improving operational convenience, Manufacturer: Hangsu