Sigma ProConnex 49407 Squeeze Connector

Lumber crayons feature a high-quality, sturdy design to last up to 10 times longer than ordinary molded wax crayons. Plus, its high melting point prevents it from melting when kept in direct sunlight. Crayons are fadeproof, waterproof and smearproof to maintain an excellent level of visibility in most conditions. Hexagonal shape allows easy use with compatible lumber crayon holders (sold separately). Lumber crayons are perfect for writing on wet lumber, dry wood, metal, concrete and more.