The STABILA 78-Inch/32-Inch Type-96M Magnetic Jamber Set comes with two levels extra versatility. Both levels utilize rare-earth magnets to stick to metal surfaces. The 78-inch box-beam level's magnets line up with hinge leaves, which allows you to set up the level and then install the door frame right without the need to stop and check measurements. Each of the levels has two vertical vials and one horizontal vial to take plumb and level readings. The 78-inch aluminum level has soft hand grips so you can work with ergonomic comfort for reduced hand strain. Both levels have red end caps that grip the wall to prevent slipping. The end caps detach when you need to make flush measurements.