These propagators are designed for used in the germination of seeds and protection of young seedlings in an environment which optimizes conditions for germination and growth. Ideal cell size to transmit room temperatures for optimal root growth. Seedling tray with premium material won't crack or break during transport Features -Color: Black-Material: Plastic-Size: 54.00X28.00X4.00cm/21.22X11.00X1.57in- Can be used repeatedly, suitable for starting flowers, vegetables, saplings and herbs such as tomatoes, cucumbers and beans. The best start to your dream garden. - The size of cells allowing the cell to pass room temperature, providing an optimal growth environment for plant roots. - Sow and cuttings organically with compost directly into the base or use smaller trays. - Easy to transplant plants, effectively prevent transplant shaking . - There are 200 small spaces in each nursery box, which can hold 200 plant seedlings. Packing list: 10 x starter trays