The Ultra-Mag 4-VIAL from CHECKPOINT is a non-laser professional product. Starting out to build a true professional torpedo to match the 880 series and with the same neodymium magnet system found with our other professional products was the main goal, it is the strongest holding truly professional torpedo level in the world. Designed for portability, efficiency and professional durability it’s features include, extra large V-groove system (easily parallels up to 10″ diameters), four neodymium rare-earth magnets able to hold up to 30x its weight, fully CNC machined 6061-t6 aluminum alloy and four 45 arc min. vials including, horizontal, vertical, 45 and 30-degree. The horizontal vial can be uniquely viewed from ALL sides, and as with other CHECKPOINT products manufactured to aircraft standards in materials and plating. Water and shock proof, it also has permanent laser engraved graphics and a lifetime guarantee on its’ indestructible body. This is the real thing! With real magnets unlike anything you’ve seen or felt.