PTM heavy-duty spring clamps are excellent accessories for securing a tarp to a canopy. Simply hold a tarp against a canopy frame with this spring clamp and enjoy securely covered canopy frame and protection against bad weather including heavy rain, snow, and high wind. They are great for many applications and their unique design allows for fast and easy opening and closing. They are constructed from heavy-duty steel for durability. Because they are easy to position with one hand, they are very useful inside craft and wood shops. The soft PVC coating tips keep work surface protected from damage. They are available in 2”, 4” and 6” inches.