Our Tentkeder trailer molding welting has a durable fabric covering over a vinyl insert. Instead of sewing your fabric to a vinyl tongue, you sew directly to a fabric tongue so there is no chance of ripping the vinyl tongue due to needle holes. Our style TKW2108 fits our AATM aluminum trailer molding, our VTMW vinyl trailer moldings and is also a perfect fit for Costa Track®. Our style TKW2107 fits Flex-A-Rail vinyl track.