Mayne Inc Yorkshire Window Clay Box, 4-Feet Made from high quality vinyl providing the look of a wood window box without the maintenance Ready-to-assemble kit requires minor assembly, parts glue together easily to create a beautiful finished product (about 15 min to assemble) Kit includes front panel, back panel, bottom panel, left end cap, right end cap, vinyl glue, 3 wall mount brackets with screws Panels can be cut to the exact length needed to create a custom fit for your windows Sub-irrigation water system, encourages root growth