Copperfield Chimney 8" x 35ft 316Ti-Alloy .006 Stainless Steel Standard Forever Flex Pre-Cut Liner d22.75 what is this and should

what is this and should it be kept or thrown out

Assembled Dimensions: 14"DIA

125" (A) x 10" (B) Applications Single-Wall Interior Stovepipe for connecting woodstoves to manufactured chimney Warranty Limited-lifetime warranty

Model SF3-SC Clearance UL and ULC listed to 1777 standard

Copperfield Chimney 8" x 35ft 316Ti-Alloy .006 Stainless Steel Standard Forever Flex Pre-Cut Liner d22.75 what is this and shouldThis is a flexible, easy to uncoil liner that is lightweight, thick, and durable. Because of its low memory and great flexibility, it is very easy to install. Features For Standard Forever Flex components 316Ti Alloy Stainless Steel Works for all fuel types: wood, pellet, oil, non condensing gas, and coal Very lightweight High flexibility Long lasting, durable construction Pre cut to common lengths Thicker liner construction for enhanced durability