This product comes with 150 pieces of spiral nylon landscape items. They are used to secure the edges of grasses, flowers, and other plants, preventing them from being damaged either accidentally or intentionally. Installation is a DIY task. Depending on the soil density, you can hammer these no-dig landscape anchors into the ground or fabric using a rubber mallet or by hand. Space each anchor about 4 feet apart, and it's simple enough for home projects. Made of reinforced nylon, these garden borders and plastic nails are both hard and tough, stronger than ordinary ones. Unlike metal nails, they won't rust, so you can store them in your gardening shed worry-free. The spiral design reduces the risk of movement caused by frost heaves and heavy rain, firmly anchoring the pointed end in the ground. Moreover, they have multi-purpose applications, suitable for pavers, landscape fabric, artificial turf, etc., helping you create a well-landscaped yard easily. Color: Black.