Bloem 18-inch Modica Rail Planter Craftsmen MR1844 6-Pack
The Modica Railing planter is universal planter fitting all standard railings from 2in to 6in in width. The planter has an outside diameter of 18in for great soil capacity and offers a large planting area. Featuring a water containment system with overflow drainage to keep your plant healthy on those hot summer days. Water reservoir in bottom Groove sizes for a 2 x2, 2 x 4, or a 2 x 6 rail Center rail punch out holes allow you to secure and stabilize the planter with cable ties (not included) Available in a variety of sizes and colors
Bloem 18-inch Modica Rail Planter Craftsmen MR1844 6-Pack Review
My child bought this hardware at ToolKing.com, but your price is way better!