[Material]-- Our seed starter is made of high-quality silicone, which will not melt, become brittle or crack even under the most extreme conditions, and can be recycled for years. [Breathable Ventilation Holes]-- There are ventilation holes at the bottom of the silicone seedling tray, which allows sufficient oxygen to reach the plant roots while preventing moisture accumulation. [Multi Purpose]-- Silicone seedling trays are perfect for seeds, vegetables, plants, flowers and seedlings, perfect assistance for farm, and garden workers. [Size]-- The size of the silicone seedling starter is about 18*14*6.5 cm/7.1*5.5*2.6 inch, suitable for nurseries and miniature greens, you can stack them together to save space. [Protect Roots]-- The flexible silicone wall is ideal for transplanting plant seedlings in your garden by protecting the integrity of the seed roots and soil.