Velux sun tunnel skylights are designed to provide natural light into every room of your house. The Velux flexible tunnels provide installation flexibility. Flexible tunnels can be used when the distance between the roof and the ceiling is too small or too great for a straight or rigid tunnel. A Velux sun tunnel skylight is easy to install, regardless of your roof type.

• Low profile flashing provides an integrated look with the roof line
• Pivoting tunnel system and flexible tunnel for a quick and easy installation
• Impact models available for hurricane prone areas
• Optically engineered, designed to capture light through a high-impact dome on the roof and send it through a highly reflective tunnel, transmitting a pure natural light with no color shift
• Pivoting tunnel system, the adjustable pitch adapter makes tunnel installation easier and enables more light to be captured
• Flexi loc system, a tunnel connection system that cuts tunnel installation time in half and highly reflective tunnels that deliver the highest quality daylight into the space below

• https://assets.unilogcorp.com/187/ITEM/DOC/VELUX_101897944_Instruction_Installation_Manual.pdf Instruction/Installation Manual