Empire Polycast I-Beam level spirit torpedo measuring 9 is made of aluminum and is popularly used by contractors drywallers and homeowners. Empire Polycast I-Beam level spirit torpedo grooved has magnetic base and edges with three vials that offers superior readability. I-Beam level of 9 features easy grip hand holes non-conductive frame that insulates from heat. • Length: 9-inch. • Number of vials: 3. • Vial positions: (1) 45° (1) Level (1) Plumb. • Vial material: Plastic. • Base type: Magnetic Grooved. • Strong accurate 9-inch Polycast frame. • Non-conductive frame insulates from heat cold and electricity. • Strong holding magnetic edge. • Porous highly conformable and strong yet easy to tear. • Suitable for use with all casting materials. • Conforms easily to body contours. • Strong and durable padding. • Sold as 1 Each.