The rollers are made of high-quality polyurethane with a hardness between 80A-95A (customizable), which is abrasion-, oil- and deformation-resistant and ensures a long service life even under continuous operation. However, it should be noted that due to the characteristics of the polyurethane material, the pigment in the polyurethane is easy to oxidize over time, but it does not affect the performance.

The lightweight yet strong aluminum core provides structural integrity without compromising rotational speed or balance. It resists rust and maintains dimensional stability during temperature changes.