The Savage Swanson SVLB24 24-Inch Lighted Box Beam Level allows quick, accurate reads- even in the darkest, most cramped situations. Powerful LED lights provide illumination in all 3 vials and automatically turn off after 10 minutes. Never struggle to read your level again! Truly an innovation. Features: * Continuous dual rail frame * .029 degree vial accuracy * Precision machined * Vial lighted system * Supershock end caps * 80 percent stronger Savage strength frame * Acrylic block vials * Multi-ring vials * 300 hour average battery life What"s In The Box: * Swanson SVLB24 24-Inch Lighted Box Beam Level * (2) Energizer batteries