Jiffy 36mm Windowsill Greenhouse 24-Plant Starter Kit Jiffy Windowsill Greenhouse comes with a clear dome to trap in humidity and heat to help the seed germinate quicker for indoor starting Includes Jiffy 36mm pellets (replacement part#J3R36) Ability to grow 24 pants Just add some water and seeds Great addition to your windowsill as it is a space saver Indoor Gardening Greenhouse Gardening