OneDerGrow TM Quest Large 15 Inch, Yellow, 3 Tier Stackable Planter, Vertical Garden Great for growing Strawberries, Herbs, Vegetables, Mushrooms and much more Great Mother's Day Gift. 15 inches in diameter by 6 inches deep (Each one) (Ideal Size) Maximizes growing space in limited areas. Can be used outside or indoors Available in Terra Cotta, Blue, Black, Yellow, Red, Green all with free shipping available over $35 Holds 4.5" starter pot on outside and 6" starter pot on center, or 5" syrofoam plug for hydroponics, : Made in the USA