Durable Planters: 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 square planters are used outdoors year-round, as they are resistant to high-impact, chemicals and extreme weather conditions. It 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 planters sturdy, and provides the roots and potting mix with adequate insulation from surrounding weather conditions. It can be filled with sand or gravel to provide your planter with added stability. – Features a Water Reservoir: This Nantucket Planter comes with a built-in water reservoir that provides your plants with a consistent source of moisture and allows you to water your plants less often. – The Mayne Advantage: Mayne offers a 15-year residential warranty or a 5-year commercial warranty on this Nantucket 16in Square Planter. 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.