The magnets in the base of each Beacon Pro 1.0W LED adhere to the metal cone adapter, increasing the visibility of the highway flares. Simply attach one or two Beacon Pro 1.0W LEDs to the cone adaptor and place it in the top of any standard traffic cone. The FlareAlert Weighted Base is a metal plate that’s heavy enough to withstand strong wind and will not blow away from highway traffic. Simply attach to the magnetic base of the FlareAlert Beacon Pro 1.0 LED Flares (61156, 61157, 61158, 61159, 61160). Can be used in combination with the FlareAlert Metal Cone Adaptor (61161).