The STABILA Type 196 Concrete Set, featuring spirit levels in practical lengths of 32in and 72in, designed especially for concrete workers. The 32in is the optimum size for traditional footings and universal for most leveling needs. The 72in is perfect for plumbing up your form work and establishing horizontal benchmarks. The Type 196 heavy-duty frames are designed to endure construction sites thanks to STABILAs tried-and-tested quality. The tools key highlight is the LOCKED VIAL system, which ensures long-term accuracy of the levels. STABILA always a great choice for true professionals.