Safe and non-slipping surface for permanent or occasional installation • Ideal for erosion control • Commonly used for driveways and parking lot, landscaping, golf course, trails, walkways and vehicle work surface • Made of 100% recycled HDPE plastic • Ecological and safe for the environment • Patented expandable S‐joints guarantee flexibility and stability at temperature fluctuations • Interlocking system prevents horizontal and vertical movement • Prevents soil compression and grass damage • Easy to manipulate and rapidly installed • Size: 1 m² by 2 in height • Also available in 1 in height (NF-LockgridOntop).