Winnerwell Flashing Kit Designed to fit perfectly with the 2.1'' Double-wall Chimney, 2.5'' Double-wall Chimney and 3.5'' Double-wall Chimney, the Winnerwell Flashing Kit is made from silicone which resists high temperatures and is held in place by stainless steel rings with six wing nuts. This Flashing Kit can be used to create a weather-tight seal on existing stove jacks or when installing a stove jack in a tent or shelter. Features Compatible with 2.1'' Double-wall Chimney, 2.5'' Double-wall Chimney and 3.5'' Double-wall Chimney Made with silicone to resist high temperatures, creates a tight seal around the pipe, and provides flexibility Stainless steel rings and 6 wing nuts hold the Flashing Kit in place Use with existing stove jacks or when installing a stove jack in a tent or shelter SpecificationInner Diameter: 122mm / 4.8inOuter Diameter: 220mm / 8.7inHeight: 92mm / 3.6inNet Weight: 0.53kg / 1.17lbs