Twinson is a unique single base material with the natural appearance and warm feel of wood, it has the low maintenance and durability of PVC. Twinson will not splinter or split and is resistant to water and insects. It is easy to cut and install, due in part to a concealed assembly system. Twinson is 100% recyclable and is an environmentally friendly alternative to tropical hardwood. Twinson contains fast-growing wood raised in renewable forests and is PEFC certified.