Review on Boost Your Garden'S Pollination With KIBAGA'S Handmade Bamboo Mason Bee House - A Haven For Productive And Peaceful Bee Pollinators! by Charles Stennis

Purchased this very attractive, very well made, and sturdy bee home only to realize I didn't do my research. According to thehoneybeeconservancy.org:1. Mason bees need a "breathable" tube, which bamboo is not. Paper tubes work best, apparently.2. They need a tube that is at least 6" long or you get skewed sex ratios. These tubes are 3.5".Like I said, well made, excellent craftsmanship, and I wouldn't hesitate to buy again if it was the correct size. Would make an attractive ornament.