... the installation cabinet base Benchmarks to provide tiles Specifications: Level Accuracy: ± 1mm/5m Vertical accuracy: ± 1mm ... window corner, the door angle, stigma Corner detection, level detection point. Decoration: doors and windows, staircase handrail ... decorationwhat is in box ? laser level meteraluminum boxbearerglassesmamualbattery 5 Line 1 point Automatic laser marking instrument level meter #2