Incredibly strong with highly accurate, UV-resistant and magnified dual Easy View vials calibrated to 0.5mm/m (0.005"). Strong aluminium profile is fine-milled on top and bottom edges for precision. Continuous bridge over central vial to allow accurate draw or score lines. Easy-to-hold silicone air-cushioned handles and perfectly positioned rubber studs to provide scratch protection when pressing against a wall, as well as extra grip to the surface. Shock-resistant end caps protect against drops and bumps on site. Solid Box Beam Construction Machined Non-Magnetic Base 2 x 90° & 1 x 180° Vials UV-Resistant Vials Shock-Proof Polypropylene & TPR End Caps 1 Year Guarantee Solid Box Beam Construction Machined Non-Magnetic Base 2 x 90° & 1 x 180° Vials UV-Resistant Vials Shock-Proof Polypropylene & TPR End Caps 1 Year Guarantee