Features: • 3 solid shockproof acrylic epoxy locked vials, including 1 OPTIVISION® Red tilted horizontal vial with gradient lines up to 2% and two vertical vials with RedEffect™ • 1 Plumb Site® Dual-View™ vertical vial • Accuracy: 0,5 mm/m • Wall grip feature • Bi-material shock absorbing rubber end caps • Finely milled base up to 120cm • Bridge at horizontal vial for increased body strength • Continuous marking surface