4 Sizes - 10 x 9 x 8 cm; 12 x 11 x 10.5 cm; 15 x 14 x 13.5 cm; 18 x 16.5 x 15.5 cm; Saucers 10cm; 12cm; 15cm; 18cm. The package includes - 18 pieces of the clear orchid pot, 18 pieces of saucers, and 100 pieces of plant labels which can help you record the date of planting and the growth status of plants. Good Air Flow and Excellent Drainage - Good drainage slits at the bottom. The holes at the sides allow for good internal air circulation, and the holes in the base can provide proper drainage and ensure the required moisture level of the substrate to promote healthy root growth. Solid Material - This mesh pot is made of high-quality PP plastic. The outer pot's surface is matte white, and the inner banks with slotted vented sides promote plant growth through aeration. It also has saucers so your floor or desk won't get ruined. It is Great to Watch Your Roots Grow - It is so lovely to SEE the origins, and the moisture level in the potting medium is so beautiful. It allows me to quickly check on the progress of plants without disrupting their growth by digging around in the medium or doing the "tug" test to see if cuttings have rooted. Root Control Design - When plants become too big for a solid pot, roots begin to circle and choke each other, but this slotted pot can effectively guide the heart to grow vertically downwards out of the vents at the sides and bottom. The nets allow more airflow to the root zone, prune the root structure, and prevent circling.