Product Description (Patent Number: US6,644,899) The HartmanEW unit is comprised of three (3) primary sections: A base section which serves as the main body of the endwall. It can be filled with any material for weight. A sectional piece to adjust for height and depth requirements. A lid piece with mount for delineator with florescent striping to provide better visibility. Additionally, ring adaptors are available for various pipe sizes. The HartmanEW Endwall can be adjusted with additional section pieces to bring its overall height above the roadway for better visibility. Specifications: Overall dimension: 3' high by 5' long by 1' thick Material: Linear low-density polyethelene structural plastic with a .200" wall thickness Total Weight: Less than 100 pounds, pre-installed, unfilled Adapts to fit pipe sizes: 18", 15" and 12" Applicable pipe material: Plastic, concrete and metal Available in three colors - Granite Gray, Light Sandstone, or Desert Sand A natural-looking stone wall pattern provides a pleasing appearance