an educational panel about the invasive species - Garlic Mustard - into the aluminum sign frame, and you have an eye-catching, educational, and beneficial exhibit which teaches..., and Minnesota, where garlic mustard has invaded woodland areas. The all aluminum sign frame is the BEST-EXhibits design, with a durable black texture powder coat finish. The boot brush... assembly is also durable powder coated aluminum, and comes with one set of boot brushes installed. Replacement brushes are readily available on-line when needed. The standard exhibit...