How it's made. The post is a 14 mm square bar with a row of pockets down its front; every sign is 120 × 24 mm with a peg on its back that pushes into a pocket, so the signs stack in any order and pull free. The lettering and the arrow are set 1 mm into each sign in a second colour. Distances are great-circle miles (or kilometres) from where the post stands; the arrow on every sign is the same, pointing right when the place lies east of you and left when it lies west — flip any you like. Standing, the post is about 22 cm tall with six signs, on an 80 mm base. For a pole, a tree or a fence the post has a 40 mm plate down its back with six countersunk screw holes and four slots for a zip tie or a hose clamp, and it is printed in PETG for the weather — a dab of glue in each pocket keeps the signs on outside. Up to 4 signs $24, 6 signs $30, 8 signs $36.