lightweight rectangular aluminum profile spirit level, rotatable angle spirit level for determining inclinations, coated measuring surface protects sensitive surfaces, easy to clean thanks to smooth side surfaces and electrostatic powder coating, plastic end caps protect the profile from impacts, STABILA installation technology ensures long-term precision ? Measuring accuracy in normal position ± 0.5 mmm, particularly suitable in metal construction, for carpentry and carpentry work and for do-it-yourselfers