Johnson Non-Magnetic Bamboo Level, 0.026 in Accuracy, 48 in L, 6 Vials, Plumb and Level Vial Positions, Bamboo | The ultimate win-win, our EcoTech bamboo levels resist mortar adhesion, making them the easiest cleaning level for masonry work. Plus, their solid bamboo construction is environmentally friendly. The Eco-Tech level comes with curved vials for extra-smooth bubble travel.