Nature Border edge blackEasy to install and they stand up against deterioration, impact and temperature fluctuations. That's what you get with Nature's flexible border edging made of recycled polyethylene. The border edge can be adapted to any shape, rectangular or curved, and it's handy for marking off paths, borders and tree trunks. The product is easy to install by burying it in the ground or using the ground pegs (sold separately). Comes highly recommended!