PlantBest Starting Pellet Greenhouse Kit is an easy way to start your garden vegetable seeds indoors. This all-in-one kit includes a heavy-duty, reusable, mold-resistant greenhouse tray and humidity dome to retain moisture and heat. The coconut coir pellets are dried and compressed. So, add water before planting and watch them expand. Once expanded, they are ready for planting, and you will sow your seeds directly into each pellet. The coconut pellets make stepping up, and transplanting your seedlings easy.