Is the cordless lift mechanism on your Hunter Douglas Duette shade broken or stuck? This is the exact replacement transmission (the internal part that makes the blind go up and down) you need. Part number 7300159000, in a blue color to match many models. It's brand new, genuine Hunter Douglas, and comes in the original packaging. This fix can save you a fortune compared to buying a whole new blind. Perfect for DIYers or professional installers. Just make sure to match the part number and color to your existing blind before ordering. Bring your favorite window treatment back to life!