Corresponding Drip Trays Indoor 2 and 3 Inch Planters with Optimal Drainage THIS IS A MINI PLANTER 3D Printed Planters provide great aeration for plants when planted directly into. The Unique material is made from Corn, Beets and Wheat Grass. Lightweight and Durable, these planters are 100% recyclable, biodegradable and compostable. Each planter is made to order and has unique features. Some imperfections are normal, please remember this.