This extension kit attaches on to your existing Modular Rustic Garden Wedge (item #18313) expanding the unit to twice its size. Excellent for small patios, decks, condos, apartments or anywhere you'd like to grow vegetables, herbs and flowers, "The Wedge" eliminates bending over while gardening and is perfect for gardeners with mobility and back strain issues. This unique tool-free design allows the bed to be assembled in minutes. Tool-free assembly. Handcrafted in the USA. Made of 100% Western Red Cedar. Includes fabric liner. 48"L x 34"W x 32"H. Five-year warranty.