Pack of 100 Purpose Ground Anchor Spikes for garden fleece weed control ground cover membrane landscape fabric features: Colour: Black Head Diameter: Approx. 3.8 cm Max Large - Length: approx. 12.5 cm Material: UV-resistant plastic barbed for a better hold in the base - for both air and moisture permeable - Rot Proof - Long service life - Very stable and breakage resistant Manufacturer manufactured in the EU