1,Add spacers:This product contains gaskets, Suitable for various specifications Landscape Edging,Synthetic Grass Landscape ,Fixed more firmly and not easy to fall off, Used for Garden Lawn Yard,Paver Edging,Weed Barrier,Artificial Turf.... 2,Biggest advantage :The stakes is quenched at high temperature,Harder than similar products,Can be easily inserted into hard objects,No need to worry about bending and breaking 3,External structure:Our carpet nails have a spiral design, Stronger and harder to pull out.The surface is galvanized and not easy to rust,Longer service life. 4,Portable 6 inches Landscape : Our Landscape Anchoring Stakes is about 150mm / 6 inches long and the retainer washer is about 1 inches in outside diameter, 40 stakes 40spacers。 5,Widely Application:Plastic landscape anchoring spikes fit for paver edging,landscape edging,weed fabric,artificial turf. We aim to be the most reliable partner by your side. This product is made of more scientific technology, after high temperature quenching, the hardness is far higher than other products, can be easily nailed into hard objects, and will not bend and break, the spiral structure is more solid, the surface galvanized treatment, not easy to rust。 Used for Garden Lawn Yard,Paver Edging,Weed Barrier,Artificial Turf....