Using your Greenlee 06259 CableCaster replacement darts is a breeze. First, make sure you're using them with the 06186 CableCaster. Insert the darts into the CableCaster and aim it at your target in hard - to - reach spaces like suspended ceilings. The 50 - foot range allows you to cover a good distance with each throw, reducing the number of pulls needed. When it gets dark, the glow - in - the - dark darts are easy to spot, so you don't have to worry about losing them. You can also use the optional flashlight (46500) to improve visibility. As for maintenance, keep the darts clean and dry. After use, store them in a safe place. And remember, the bright yellow body of the CableCaster is designed to be easily visible, so try not to misplace it. Enjoy faster and more efficient cable installations with these great darts!