Good permeability: these net cups feature slotted mesh design to promote efficient plant growth through improved aeration. Natural root development: the net pots have holes in the bottom to encourage healthy root growth with even drainage, allowing roots to grow downward or outward for larger, stronger root systems. Ergonomic design: the wide rim makes the hydroponic cups easy to handle, lift, and transport. The side slits support robust root growth and make cleaning simple. Versatile use: suitable for hydroponic and aquaponic gardening of orchids, tomatoes, peppers, and other plants. Ideal for home gardens, balcony gardens, soilless cultivation, liquid culture, and organic growing. Compatible with various media: designed for use with hydroponic and soil-based growing media such as expanded clay pebbles, lava rocks, pumice, and rock wool. Roots easily penetrate through the slits in the sides and bottom of the cup. Color: Black Material: Plastic Size: Top diameter: 45mm (outer), 31.5mm (inner); Height: 45mm Package includes: 100 x Garden net pots Note: Light and display settings may cause slight color variations between the image and actual item. Measurement error allowance: +/- 1-3cm.