Leak Protect: Advanced piece molding technology creates a seamless barrier against water infiltration, safeguarding interiors from damage while optimizing Flows efficiency Flexible Roof Compatibility: This silicone roof vent boot adapts to various roof angles and shapes ( 25x25x9.8Cm), seamlessly fitting metal,, or asphalt roofs for a Excellent seal Ideal for residential and commercial ventilation systems Complete Installation set: Includes an 8mm wrench and roof screws for straightforward mounting on roof structures, simplifying or professional setups Extreme Weather Resistance: Premium silicone Component, high / low temperature resistance, ensuring durability in harsh climates Maintains structural integrity from scorching summers to freezing winters Safe Component: Produced of silicone, this vent boot is Sustainable and safe for homes with children or pets, aligning with health Awake lifestyles, Manufacturer: Oxxggkao