Instant purchase and silent purchase are welcome! [61100 13-12mm 2-stage Aluminum Rollers (Black)] ☝ Please copy and paste when purchasing multiple items. Details on discounts and tracking mail are listed in my profile. Feel free to comment if you have any questions ^^ #Other 13-12mm Aluminum Rollers are here! Boooon ☝ Tap to check out other products! #[Black] products are here! Boooon ☝ If you are looking for products of this color, click here! #All Rollers are here! Boooon ☝ Tap to check out other products! #All Mini 4WD products from Boooon are here ☝ Tap to check out all products! ※ Compatible with Tamiya products, but cannot be used in official races due to being aftermarket parts. Please use them for practice.