We utilize these as needed on essentially linear (straight lined beds) beds.
They measure 4 1/2″ x 12″ x 3 1/2″ and are made of concrete. They work nicely when you are after a more stylish edge than that of plastic edging. They come in (4) colors which are represented below as: Autumn Blend, Quarry Gray, Sienna, and Tan. Note: heavy riding lawn mowers can alter or move these over time.