Aluminium rectangular profile with reinforced ribs, together with Stabila installation technology, ensures accuracy and a long service life. 2 x vertical vials enable readings in any position. Vials and measuring surfaces align perfectly during the production process and are permanently connected, guaranteeing the very best in measuring accuracy. Vials are highly transparent with hard-wearing acrylic glass and precision-ground inner contours and fluorescent liquid. Electrostatic Powder-Coated Thick-Walled Aluminium Section Non-Magnetic Base 2 x 90° & 1 x 180° Vials Accurate to ± 0.75mm/m in Reverse Position Protective Plastic End Caps 1 Year Guarantee Electrostatic Powder-Coated Thick-Walled Aluminium Section Non-Magnetic Base 2 x 90° & 1 x 180° Vials Accurate to ± 0.75mm/m in Reverse Position Protective Plastic End Caps 1 Year Guarantee