Tufbell Clips are a great way to secure row covers or frost blankets. They fastened around twine or wire; you can stake them to the ground. They snap to the edge of the material without causing damage, and they can be unsnapped as needed.
For best frost protection, use Tufbell Clips to hold the edge of your material to the ground, creating a sealed barrier. This product is recommended for use with DIO-Betalon products (DT-550, DT-650, and 1500N).