The characteristic is that the accurate wire grooves is located in the outer jaw, and the bricks wire can easily go around the inner and outer corners There is a spring Clamps in the bricks liner to hold the tiles firmly, which provide a quick way for bricklayers to run lines Practical, maintain its high for long time Through the craftsmanship of many experts, this hand tool have strict requirements The rubber pad can holding the surfaces of the bricks tightly without maintaining the tension during installation, Manufacturer: APGLSXY