Save 50% on flexible post replacement in two lane/two way construction zones with Astro Optics CD-2 traffic channelizer. The CD-2's have been installed in several states in conjunction with flexible posts and have proven to be very cost effective. The markers feature amber housing with twin reflectors on each side so they are easily visible both day and night. You can also create your own reflectorized island. EASILY INSTALLED Apply with recommended flexible bituminous or epoxy. Contact manufacturer for proper installation instructions. Recommended applications Temporary construction zones Permanent installations - in non-plowable states, CD-2's can be used in gores, islands or any location which requires channelizing of traffic CD-2 specifications.