Parts List:Style 01.100 x Replacement Growing Sponges10 x Plastic Plant Labels1 x TweezerORStyle 02.50 x Replacement Growth Sponge10 x Plastic Plant Labels1 x TweezerHighlight description:[High Quality Material] This growing sponge is made of 100% biochar cotton, environmentally friendly, high fertility, good for plant growth, compared to traditional seedling soil, our growing sponge is PH balanced, strong absorbency and moisture retention, perfect for helping germination, providing soil-free, clutter-free, year-round indoor growth.[Professional Small Hole Design] There is a small hole at the top of the growing sponge to ensure that the seeds put in will not fall into the water. There are small grooves around the hydroponic growing sponge, which helps water circulation and maintains a certain humidity level, providing sufficient water for seed germination. All seed starting sponges are dry and easy to store.[Suitable for Most Hydroponic Growing Systems] These growing sponges are perfect for most hydroponic growing systems, can be used for seedling trays and potted plants, you can also use the seed starter sponges with a grow basket or seed starter system. The height of the soaked grow sponge is 2.56inch, the diameter is 0.9inch.[Easy to Use] Simply remove the old sponge and place the new sponge in place. Soak the sponge for 3-5 minutes before use. The set contains a total of 50 /100 planting sponges, 10 plastic plant tags and 1 tweezers to start multiple seeds at the same time, Note: Seeds are not included.[Widely Used] You can use the planting sponge to grow a variety of plants in your hydroponic indoor garden, such as strawberries, tomatoes, basil, mint, herbs, flowers, lettuce and more. Whether you grow indoors or outdoors, this seedling kit is a perfect gardening gift for your family or friends who love to grow plants.SpecificationProduct name: Growth SpongesMaterial: SpongeSize: Height 2.56inch, Diameter 0.9inchQuantity(optional): 100pcs, 50pcsNotes:1.There may be slight differences between the picture and the actual color of the commodity. We will try our best to show you the exact color.2.Please allow slight dimension difference due to manual measurement.