A costumer wants 7 foot ceder posts attached to the side of landing
made of concrete blocks topped with brick. A hand rail will be
attached to the posts and a flat ceder board attached to the top of
the posts that will serve as a plant shelf.

I'm not sure if a concrete slab lies under the brick? The landing is
about 30 inches high. What ever anchors I use must resist pull out
forces from the railing and shelf.

Do appropriate anchors exist for what I want to do?

Thanks for any help!