Made with of Genuine Extru-Lite? magnesium which is 30% lighter than similar aluminum screeds. Quality material won’t rust extending the life and use of tool. This screed are built for strength and rigidity, but lightweight enough for the largest of jobs. The 10′ screed is easy to move along forms on large slab projects. The 1″ x 4″ size is comfortable to hold while hand screeding. Thicker walls make up the 1″ side of the screed to meet our uncompromising standards in holding its shape. Plastic end caps extend the life of the tool by eliminating the opportunity for concrete and other materials to build-up within the screed. Popular for leveling material in concrete paving and landscape work.