V-Groove Magnetic Torpedo Level TS31379 They are made of rubber

They are made of rubber and are designed for heavy-duty elevating tripods with leg struts

It measures distances in feet-inches

It is a sturdy batter board with four clamping screws that allow for easy handling and a secure grip on a panel and boards that are up to three inches thick

The fourth is a cross-mounted vial that provides second level indicator 90-degrees to the long axis of the Johnson Level Three-Beam Magnetic Torpedo Laser Level

it allows precise

V-Groove Magnetic Torpedo Level TS31379 They are made of rubberThe Keson V Groove Magnetic Torpedo Level is a high quality and precise leveling tool designed for masonry, wood construction, window fitting, landscaping, bricklaying, and a wide array of applications. It can also be used as a check rod to ensure the flatness of whatever surface youre working on. This high quality level features an aluminum alloy Torpedo frame that ensures high strength and light weight. High Quality Construction: The Torpedo level