General description This 46 m² pond liner underlay is designed to provide optimal protection for your pond liner. It safeguards against damage from rocky ground, burrowing animals, and root growth from trees and shrubs. The underlay can also be used over the pond liner to prevent damage caused by swimming activities or high water pressure on sharp stones. Technical specifications Material: Polypropylene (PP) and Polyester (PES) fibers Weight: 1000 g/m² Thickness: 7.0 mm Roll width: 2 m Puncture resistance: 3500 N Color: Gray Manufactured in Germany Geotextile robustness class: 5 (GRK 5) Rot-resistant Metal and needle detected Diffusion open Other information High-quality materials used for exceptional products AQUAGART offers a wide range of high-quality products for garden, pond, and landscaping