Whether you’re putting up shelves fitting curtain rails or just getting pictures straight on the wall the Bosch PLL 1 P laser level pen makes the alignment of objects a straight forward & simple task. With a laser line projected out one end & a laser point out the other you can even use the laser level pen for transferring heights from one wall to another. The PLL 1 P also has a high level of laser accuracy with a margin of +/- 0.5 mm/m.