Compact, 4-inch design easily fits in pockets or toolbelts 33% higher visibility, epoxy locked vial features 2% slope lines or ¼” pitch and an accuracy of 0.0005”/1” Aluminum box beam delivers guaranteed accuracy and lifetime durability Invertible vial allows for accurate reading upside down using the milled surface V-grooved bottom with integrated rare earth magnets securely grips pipe, conduit, and metal surfaces Included carabiner for fast deployment Drop-tested to exceed MIL-STD-810G to ensure durability on the toughest job sites Limited lifetime warranty