For;
°Nighttime Visibility: The internal retroreflective lenses catch vehicle headlights, making traffic lines visible from hundreds of feet away
°Tactile and Audible Warnings: Running over a marker produces a distinct "thumping" sound and vibration inside the vehicle, alerting distracted or drowsy drivers that they are drifting out of their lane
°Durability Under Heavy Traffic: The solid cast aluminum body and sandy resin base are engineered to withstand the crushing weight of heavy commercial trucks and daily traffic wear