The 3M Diamond Grade Linear Delineation System Series 340 provides eye-catching reflectivity for construction barriers and guardrails, with a unique crimped design for excellent visbility around curves.The system offers quick and easy installation, with various width options to fit your needs. Panels in 1.5-inch widths come with 3M VHB Acrylic Foam Tape 5962 for straightforward and dependable installation into "W" grooves of standard metal guardrails. Panels are available in 34-inch lengths for 4- and 6-inch widths, and 31-inch lengths for 1.5-inch widths.