Push and hold the button to extend the Eclipse to partial or full 8′ extension in just seconds. As the billow-proof worm-gear motor unrolls the canopy, the rafter arms glide up the vertical track on the side of the coach to deploy a stable, truss-like, overhead support. Push and hold the button to retract and the Eclipse will roll up tight against the coach. That’s it! There’s nothing to lock or latch. Carefree’s exclusive worm-gear drive motor locks the roller for travel and provides the greatest assurance of absolute protection against billowing.