This #18 polypropylene mason line from Mibro features twisted construction for reliable performance on the job site. The neon yellow color provides excellent visibility against brick, block, and concrete, making it easy to follow your guide line while laying courses. The integrated line level lets you check grade without reaching for a separate tool.

• Twisted polypropylene construction for good strength and moderate stretch
• Holds knots securely for tight, consistent lines
• Mildew and chemical resistant - store wet or dry
• Neon Yellow color for high visibility
• Includes integrated line level
• #18 weight, 225 ft length