Instant purchase and silent purchase are welcome! ※The included bearings are not the same specifications as the separately sold single bearings. [60020-4 Special Sale Bearing Set for Single Rollers] ☝Please copy and paste when purchasing multiple items Details on discounts and tracking mail are listed in my profile. Please feel free to comment if you have any questions ^^ #Special sale items and slightly damaged items are here! Boooon ☝Tap to check out other great deals! #Other 19mm aluminum rollers are here! Boooon ☝Tap to check out other products! #Other 13mm aluminum rollers are here! Boooon ☝Tap to check out other products! #All rollers are here! Boooon ☝Tap to check out other products! #All Mini 4WD products from Boooon are here ☝Tap to check all products! ※Compatible with Tamiya products, but cannot be used in official races due to being aftermarket parts. Please use them for practice.