Product Details: The Pelican Worldwide 4" Aluminum Cam and Groove Dust Plug is the perfect solution for preventing dust and debris from entering your equipment. This dust plug is made from durable aluminum construction, making it resistant to corrosion and rust. It is designed to reduce the risk of equipment damage and ensure a clean transfer of materials. The cam and groove design makes it easy to install and remove. Its durability makes it ideal for industrial, agricultural and commercial applications. FleetPride is your First Click in Heavy Duty®.