Package Designed for Winter: Include 2 PCS 10’’ x 20.65’’ seedling heat mats to provide warm environment for seeds propagation in winter, 8 transparent seed starter trays with 12 cells in each, 2 flat trays to fit underneath, 2 transparent humidity domes and 10 plant labels.Strong Seed Starter Trays: With high quality plastic, the seedling trays are durable and reusable for starting seeds, plant cloning, growing herb and salad leaves. And the seed tray is sturdy to reusable and compatible with heat mat for plants.Excellent Humidity Control: Bonviee high-rise, clear domes have 2 adjustable circular vents designed into the top - provide smooth airflow control, maximum light penetration and the best viewing angle of plants’ growing.Transparent 12-Cell Tray with Drain Holes:The only design in the market-1.5 inch square for each cell makes these seed trays are suitable for large seeds, such as potatoes,tomatoes, peppers, eggplants and so on. With drainage hole on the bottom of each cell to let exceed water flow out to help prolong the life of your plants.Constant & Even Heat in Root Zone: The waterproof and heavy-duty heat mat warms soil to around 10℉-20℉above ambient air temperature which provides the optimum environment for seed germination or cutting propagation in cold winter. Size:48 Cells A Must-Have for Gardeners For seed, they are so delicate that they need a suitable space to enhance ability to absorb water and nutrients. Bonviee seed starter kits can help to improve seed germination rate and survival rate, so it is a must have for everyone who likes gardening. We can help you start seeding easily and efficiently. The transparent seed trays cover make it Easy to observe your plants without interrupting the process, and with it's great performance on constant temperature, you don't have to worry ever! What U Get: 2 x Seed trays 2 x Humidity lid domes 2 x Heat Mats 4 x Adjustable Vents 10 x Plant Labels