Typically, roller handles come in two main styles: EU style and US style. The EU style features a single rod and is primarily designed for the European and Australian markets, although it’s also used in some other regions. On the other hand, the US style offers two cage options: 4 cages and 5 cages. This style is particularly popular in the USA, Canada, and other parts of North and South America.

Regarding the rod, there are two primary surface treatments available: Zinc plating and Chrome plating. Chrome plating is considered the superior option for its enhanced durability, while Zinc plating is a more economical choice. Additionally, the rod comes in two diameter sizes: 5.7 mm and 7.7 mm. The 7.7 mm diameter offers greater strength, but for standard projects, the 5.7 mm size is typically sufficient.