They fit perfectly on our metal fence. We have wide flower boxes which look great in the brackets!

After much research I chose these clamp on box brackets and could not be more pleased with the quality. & stability of the product. Once the brackets are clamped and secured to your deck railing the box is stable & immovable . . . Gusty wind is not a concern. The brackets are a bit pricey but you will not be disappointed. Highly recommended!

These brackets are exactly what I was looking for. They were incredibly easy to install, they work great on our railing, and the box feels secure. We have had it up for a couple weeks now and they are working great.

Works great with our planter boxes. Sturdy and easy to attach.

Wasn’t sturdy enough for my iron balcony rails . Had to use zip ties.. the screw part kept slipping off the rail..