Additional soil puck and seeds for another round of microgreens. Refill kits assume you are reusing our DIY Microgreen Grow Kits with accessories including the mister. You can use these in your own 4″ diameter container for growing fresh greens. Send us an e-mail or visit our website if you need our detailed growing instructions. www.serendipityfarm.net, firstname.lastname@example.org. Happy growing!