SAFER THAN METAL - great for schools, parks and residential jobs. Tackle any landscaping, erosion control or garden job with the durable, biodegradable and eco-friendly Ecoduty stake. Made in from recycled resins and engineered to breakdown and biodegrade, the 4 in. Ecoduty stake ably anchors landscape fabrics, weed barriers, turf, sod, erosion blankets and more with ease. Safer than metal staples, these stakes will stay in the ground and not be exposed to lawn mowers.