Standard White
The standard white stick material is resilient, self-healing and non-abrasive. It's made of a softer material that will not compromise blade life. Recommended for use with every grade of steel.
Standard Red
The standard red stick is similar to the standard white. It's recommended for every grade of steel.
Heavy Duty Red
A long lasting, durable material offered for Polar cutters. It's harder and longer lasting than standard red and white. Recommended for heavy duty cutting operations.
Most resilient, self-healing material on the market. Recommended for all cutting operations, particularly those running extended hours. Exceptional performance with high speed steel and carbide knives. 
Premium Red
Same qualities as the premium material except for it's red color.
Extremly durable material made mostly for three-knife trimmers and a few guillotines.