Features:1. Superb Material: The seedling starter trays are made of outstanding plastic material, which is ,environment protection, sturdy, not easy to break, and durable for long time use. The clear plastic trays of this seed grow kit make it easier to observe your plants without interrupting the process.2. Seed Trays with Lids: The seeds propagator tray can improve the germination rate. There are four ventilation holes on the top, through the adjustable ventilation holes of the plastic seed tray, you can adjust the temperature and humidity, reduce evaporation, control the germination process, and improve the survival rate of seedlings.3. Garden Seed Trays: There are drainage holes at the bottom of each cell, which can properly ventilate and drain, reduce the over-saturation of the root system and increase the germination rate and survival rate of the seeds. The seeds starter trays are a great choice for potatoes, tomatoes, pepper, eggplants, flowers, herbs, and other plants. It is suitable for houses, farms, courtyards, and balconies.4. Adjustable Humidity Design: Adjustable ineer humidity from 50-100%. You can easily adjust the inner humidity and temperature by rotates the regulator to accommodate different stages of seed to seedling growth. The ventilation holes are good for the rapid growth of plants and fully controls the germination 5. If you have any question, please feel free to contact us,Notice:1.Actual color may be slightly different from the image due to different monitor and light effect2.Please allow 1-3cm deviation due to manual measurementDescription:Material: PlasticQuantity: 5PCS/Set Size: As picture show includes:1 Set Plant Germination Equipment