Grow Sponges: Made from organic peat,biodegradable,expands in volume when soaked in water. With an excellent air to water ratio,it provides ample space for plant roots to grow and a better environment for germination. Hydroponics Basket Sets: Made of high quality plastic,it has a grooved design for better water circulation and allows the roots to better absorb water and nutrients without crushing the new roots of the plant,which allows the roots to grow in a healthy way. Versatile: You can use hydroponic garden accessories to grow anything you want in your garden,such as peas,cucumbers,tomatoes,peppers,squash,carrots ,beets,broccoli,strawberries,flowers,herbs and more. You will reap the rewards of a culture made with your own hands. It can also be used as an educational gift for children to observe how vegetables grow and get closer to nature. Easy to use and grow: no tools are needed to use these hydroponics grow kit. Note: The data is all manual measurement,please allow 1 - 3cm error,due to the difference in light and display,there will be some color difference,depending on the physical object received.