AM Leonard Plant and Tree ArborRain Tower Hydrator - Green Keep young and newly planted trees hydrated - even on sloped surfaces Tall, slim shape (18 inches wide when filled) works well for irrigating smaller diameter B&B and containerized trees Locking zipper stays in place and allows multiple hydrators to be zipped together for larger diameter trees Single hydrator fits up to 4 inch diameter trees Other features include black inside plastic to block sunlight from passing through and prevent mold accumulation and triple-stitched handles