Got a green thumb? With the Bloomers Rail Planter, you can enjoy harvesting herbs, vegetables, and flowers even if you live somewhere with limited space. The Bloomers Railing Planter is designed for dimensional lumber and metal railings that are 1.25” to 3.875” wide (2x1, 2x4 and 2x6 railings traditionally). The smaller interior rail recess measures 1.375" at the upper dimension and 1.625" at the opening. The larger interior rail recess measures 3.5" at the upper dimension and 4" at the opening. The flat bottom width measures 6" across (for setting on top of 6" boards).Stabilizer fasteners are provided for you to install this rail planter on your deck or balcony rails. Just insert at the desired spacing and gently pound in with a rubber mallet. You can further secure the planter with tie downs, bungee cords or by using wood screws and screwing the planter directly into the railing (use caution when drilling screws through the plastic and wood railings). In addition, the 24” length of this rail planter can accommodate twice the amount of plants as a normal-sized rail planter. Made from durable polyethylene resin, this planter can withstand any weather conditions and won’t crack. And because it's HDPE, it is BPA free and perfectly safe to contact edibles at it does not contain, nor ever leach, harmful chemicals. Additionally, the drainage holes at the bottom of the planter allow deep, plant roots to breathe and prevent stagnant water from accumulating. Enjoy planting and harvesting from your outdoor railings or beautify your front porch with vibrant flowers in the Bloomers Rail Planter from EMSCO Group.