313 Measure Mate - Ultimate Home-Improvement Tool - With Level and Ruler - Features Sliding Markers and Knife Guide - Includes Nail Gripper and Drill Bit Gauge - 12 Inch - Amazon.com
Kapro 313-60 Series 60cm Spirit Level / Water Level / Leveling Ruler
Picture Hanging Level | Rockler Woodworking and Hardware
AGF-327 4 in 1 Multifunctional Digital Angle Finder Protractor, Ruler – Gain Express
Large Bullseye Bubble Spirit Level 65mm Circular Vial by Taskar - Amazon.com
TOUGHBUILT Aluminum 9-in 2 Vial Magnetic Torpedo Level in the Levels department at Lowes.com
STANLEY® FATMAX® Box Level 600mm | STANLEY
String Line Level Information | How to Use String Line Levels | Tool Reading | Bubble Levels | Johnson Level & Tool Mfg Company