The pot is made of sheet metal, not corten, and is spot welded, so that it leaks water, which is a must so that the roots do not rot with too much water.
If you want to speed up the rusting of the plate, which happens by itself as long as it is left outside, you can mix it into a salt solution and spray it on the plate. Lay it out in the grass and mix 2dl of plant nutrition in water in a 10-litre watering can with a sprinkler and water the pot 2 times/day and you will have a rusty pot after 3-5 days. It will be most beautiful if the plate is allowed to rust by itself, but sometimes you want immediate results.
Product information
Material: Steel
Size SMALL: 13x13x14 cm
Size MEDIUM: 15x15x16 cm
Size LARGE: 17x17x18 cm