Good permeability: these net cups are designed with slotted mesh, can promote a more efficient plant growth through aerationGrowing by its own way: net pot with holes in the bottom, produce healthy roots with even drainage, which let the roots grow their own way, right down through the pot or out of the sides, allow for bigger, healthier rootsComfortably sized lip along the top makes the hydroponic cups easy to grab, lift and transport. The slits allow for bigger, healthier roots and make the baskets easier to clean.made of plastic so that net pot can reuse without crumbling; With wide lip along the top of containers, easy to grab, lift and transportWide use of pot: suit for hydroponics or soil base, cover with clay pebbles, lava rocks, pumice, vermiculite, etc.; Use as a small garden with soil, put in your garden and it will root to the groundColour:blackMaterial:plasticSize:Dimension of each net pot:Upper mouth: Outer Diameter 10.8cm; Inner Diameter 9.8cmBottom Diameter: 8cmHeight: 9.8cmPackage Contents:30 x Net PotsOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.