These biodegradable round seedling pots are 100% organic , made from wood fibers . The pots have a porous structure that allows easy root penetration , good water retention and excellent aeration of the substrate . The root system of the plants remains intact and protected from stress during transplanting, as they are planted in a pot that eventually decomposes with the rest of the substrate. number of pots in the set: 24 pcs. diameter: ⌀ 6 cm height: 6 cm 100% organic 100% biodegradable