The plant cups are made of high quality plastic material, odorless, safe and non-toxic. The hydroponic basket is suitable for soilless plant, and it can save water in arid region, drought resistance, light and breathable. The aquatic plant pots are not easy to be deformed and corrosion resistant. The hydroponic basket is suitable for garden, balcony, and flower nursery. The hydroponic pots are reusable and durable, it can be used repeatedly and durable for long time . Colour:Black Material:Plastic Size:outer diameter 8.3cm, Inner diameter 7.4cm, Bottom outer diameter 5.6cm, high 6.6cm Package Contents: 50 x Cultivation Basket Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.