Below is a breakdown of the materials of construction of the cover:
THE COVER
100% Powder Coated Aluminum
Industrial Grade Felt ensures noise free operation
THE RAILS
The Rail Tops: (that are visible from the top when the cover is closed) - These are made out of powder coated aluminum so they are extremely durable and designed to outlast the life of your trucks.
The Mounting Rails: The structure of the rails are made out of 100% Industrial Aluminum, with the exception of the intermittent lock catch ridges which are riveted to the inside of the driver?s side track. These catch ridges are made out of long lasting, automotive ABS Plastic for years of service and durability.
CLAMPS
Innovative Swivel/Rocker Clamps: These ensure a sure grip and goof proof installation of the side mounting rails. Thes clamps are made out of 100% cast aluminum.
CANISTER HOUSING
Canister Lid: The lid is made of 100% Powder Coated Aluminum so it matches the look of the slats on the cover.
Canister Housing: (The rounded part that drops into the bed) ? This is made out of durable ABS Plastic which is extremely strong, lightweight and mar-resistant.