Acetal - Copolymer Plastic Rod 3.50" Dia x 24" Length - Black Acetal provides high strength and stiffness coupled with enhanced dimensional stability and ease of machining. Acetal is a general-purpose is porosity free. The technology used in our manufacturing process ensures that every sheet and rod is free of centerline or core porosity. On the other hand it is resistant to hot water, hydrocarbons and solvents, and it possesses good bearing and wear properties. Acetal can be used in temperatures range from -58 °F to +230 °F. Acetal absorbs minimal amounts of moisture, its physical properties remain constant in a variety of environments so it makes acetal high mechanical strength, rigidity and hardness. Material: Acetal Shape: Rod Diameter: 3.50 inch Length: 24 inches Finish: Smooth Product Weight: 12.10 lbs