Product information: highly visible and impact resistant for use in any environment. Ideal for driveways, parking lots on roadways, construction sites and more chain links are encased in yellow outdoor, retro-reflective material 3m perfect for night time use and dot-c2 compliant, link of chain is roughly 2 inches in length, reflective piece is .75 of an inch creates and effective visual barrier when paired with our reflective options for stanchions, ground poles, delineators or traffic cones features & benefits: reflective links are placed every 15 inches for optimum reflectivity uv protection – lifetime guarantee with polyone smartbatch color and additive solutions our color formulation is unparalleled