This unit was such a beautiful eye-opener to me. I was sensitive to have flowers to the bees but never thought about the water and shelter. Now I have a bowl in my balcony (only available place) and a little bugs hotel. I got it from Action, it’s all made from untreated wood, I hope it’s appropriate. I was going to build one myself but I’ve seen this, so hey, why invent the wheel, right? There are still no bees, I hope they’ll still come, it’s the 3rd floor so maybe its less accessible for them.