The belt on this roller is installed on the center of the roller, not the end.
Replacement part for Rainbow One Speed E series E1 & E2, Two Speed E series Type 12, D4 SE Performance Edition
Also known as a Rainbow PN2 and PN3 roller.
Replaces Rainbow brush roller part R5590C and R5590.
This universal replacement brush roller has nylon bristles, ball bearings and end caps with thread protection.