Johnson 48 in. Aluminum Heavy Duty Box Level 3 vialThe workhorse of our level line, Johnson's 9550 levels are versatile enough to tackle any job, from rough carpentry to finish carpentry. The levels feature heavy duty aluminum frames for strength and durability and push button removable endcaps for flush work. Strong rare earth magnets hold the level securely in place on ferrous surfaces. UPC: 049448995042 Manufacturer Part No: 9950 4800 Brand Name: Johnson Length: 48 in. Style: Heavy Duty Level Type: