The product is well-made, but a recent survey showed that bee nesters tend not to get used by wild bees. Queen bumble bees seem to think that millions of years of evolution have ensured that they know far more about desirable nest sites than mere humans. The Bumblebee Conservation Association recommends placing some smelly mouse nesting material inside the bee nester in early February to tempt a queen to take up abode. I have a solitary bee nester at another site and that hasn't been used either. This year I'm concentrating on planting nectar-rich flowers. The bee nesters remain in place and may get used one year. You need patience with wildlife.