We have increased the range of our products! We started importing stackable pots from different manufacturers. Terracotta 4-flower pots have arrived! You can buy them from our online shop ‘Fertilisers Online’: https://www.fertilisersonline.com.au/stackable-pots-5-tier-planterself-watering.html Standard stacks are 3-tier and 5-tier sets. However, we can sell it in any combinations.