Good Choice: The brick line runner features spring loaded jaws which securely clamp over bricks, and provide a fast way for bricklayers to run accurate brick lines Easy to Use: The brick line runner features precise line slots in the external jaw, brick lines can easily be run around both internal and external corners. Easy to Install: Fits securely over bricks with rubber pads which grip tightly to the brick surface, no requirement to maintain perfect tension when setting up the line Suitable: The wire drawer bricklaying tool can be used on most smooth or raked bricks and blocks, about 95 - 125mm wide. Material: The brick line clip is made of PPR material, that is hard and durable. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin