Lid High: The height of the lid has been increased to provide ample space for flowers, vegetables, fruits, herbs and other plants to grow. It is suitable not only for seed germination but also for plant cutting germination. Tender plants can stay longer in the seed starter tray. 0.8mm thick material: Compared to other 0.5mm plastic material, our seedling trays use thicker material 0.8mm PVC to be reusable, durable and not easily broken. (Note: Please avoid prolonged exposure to temperatures above 48C). Unique Design: The adjustable window allows you to adjust the indoor humidity from 50% to 100% to meet your needs. Transparent seeds allow you to keep an eye on growth. Drainage holes at the bottom for better drainage. So you have full control over the growing process. Perfect size for seed starting: Each cell is 3.7x3.7x5.5cm, that's 120 cells in total, suitable for small seeds, like flowers, vegetables, fruits, tobacco and other plants. The mini greenhouse is suitable for balconies, terraces and windowsills. Compatible with heating mat and plant lamp: Can be used for a long time at a temperature below 48C. A great way to promote a beautiful and healthy garden. The propagator comes with 20 plant tags and 2 small gardening tools. A good helper for planting and raising seedlings.