Interloc Edgers 3-3/8″ x 12″ x 3-3/8″

We also utilize these types of concrete brick edgers.  They are essentially what we go to if the bed is going to have some curvature to it.  The colors represented below by the pictures are:  Gray, Red, Red/Black, and Tan.

Note:  these can be damaged by riding lawn mowers as well.