Rolltrak Replacement Roller 32mm SKU: 210389 MODEL: R4160 Error. try again later You've successfully joined the club $ 12 .76 each Mitre 10 SAvailable at selected stores. Check your local store for details Variants Bearing acetal grooved roller. Features and benefits Diameter: 32mm. Narrow Axle Diameter: 4.8mm. Load: 25kg each roller.