These items can be hung outside to grow succulents, allowing them to bask in the sun. They also have drainage holes. They are made from processed coffee cans (iron). The edges have been deburred, but please be careful not to cut yourself on the cut edges. Primer → Colored 2-3 times → Paper napkin application → Top coat 2-3 times (UV processed) Image 4 is a usage example and is not included in the sale. Size: 8x15 cm, 8x15 cm Enjoy your succulent life! Thank you for viewing.