The PLYLOX Hurricane Clips are made of 1/2" carbon steel and come in a pack of 20 pieces, providing a secure way to protect windows during hurricanes. These clips are designed to secure plywood boards over windows quickly and efficiently, helping to prevent damage from strong winds and debris. Ideal for hurricane preparation, the PLYLOX Hurricane Clips are a reliable and durable solution for homeowners looking to safeguard their windows during severe weather conditions.