Sturdy and work well.Would be 5 stars but not impressed with the delivery.Not Amazon’s fault,it was delivered by Canada post.The carrier made no attempt to deliver the package,we were home all day,pick up cards were just left in the mailbox.Went to pick up the package at the post office the next day and it wasn’t there.Had to back back again.Once again they are great ,just don’t expect good delivery if Canada post is delivering.