These vintage C-clamps are made of durable cast iron with a 3" jaw opening, perfect for woodworking tasks. The antique skeleton key turn handle adds a unique and nostalgic touch to this set of three C-clamps. Originating from the United States, these original clamps are a collectible item that combines functionality with a touch of history and charm. Ideal for carpenters and woodworking enthusiasts looking for a reliable and distinctive tool set.