Add an additional 10 feet to your XERO Destroyer Pole. These extensions fit right over the 40 foot pole, simply slide it on and clamp it in place. A bright yellow section lets you know if you have overextended it. These sections can be stacked so your pole can reach heights to 90 feet. Yes, you read that right! These sections are made from the same ultra high modulus carbon fiber as your water fed pole. This allows your pole to remain super stiff and rigid while you work at those maximum heights. You'll also see yellow markers to stop you from accidentally overextending.