CobraCo UNANT12-B Antoinette 12-Inch Black Multi-Purpose Planter Multi-purpose outdoor planter to display plants and flowers on decks and even fences Mounting brackets to fit railings 3 to 6 inches wide, or 4x4 and 6x6 posts Stylish, rust-resistant metal frame with textured black finish and swirling design details Biodegradable coco liner helps retain moisture and warmth Part of Antoinette line of outdoor planters