Durable Window Boxes: We use 100% high-grade Polyethylene resin in the manufacturing process, which makes our products durable, lightweight and highly shock resistant. – Four Season Use: These 2ft window boxes are used outdoors year-round, as they are resistant to high impact, chemicals and extreme weather conditions. This product stands true to its ‘four-season use’ tag with very little winter preparation. – Long Lasting Quality: The resin used to create our products contains built-in UV inhibitors that reduce the damaging effects of the sun. This ensures that your product doesn’t fade, preserves its color and increases its overall lifespan. – Innovative Design: Double-wall design makes these Nantucket Window Boxes sturdy, and provides the roots and potting mix with adequate insulation from surrounding weather conditions. – Self-watering Factor: In a self-watering window box, the planting container sits directly inside the water reservoir. The water is then pulled into the potting mix through capillary action – keeping your plants watered & happy! – The Mayne Advantage: Mayne offers a 15-year residential warranty or a 5-year commercial warranty on this Nantucket 2ft Window Box. Mayne has been the top choice by the home and gardening sector in North America for over a decade. – Made in the USA: Our products are proudly designed in Canada and are made in the USA.