1、Simulation Design and Superb Workmanship: Highly detailed simulation design and superb workmanship, very suitable for your remote control hub. Rubber sealed bearing kit fit for Tamiya Frog, for Super Blackfoot, and for Stadium Blitzer. 2、Manufacturing Material: Made of high quality stainless steel material, strong, durable, and long service life. 3、Good Performance: Good performance, light weight, small friction, fast speed, which will undoubtedly improve the performance of the remote control car. 4、Contactless Double Rubber Seals: Special contactless double rubber seals can seal dirt while providing frictionless performance. 5、Diverse Features: High accuracy, good compatibility, easy installation. Available in two sizes to meet your needs. Item Type: Rubber Sealed Bearing Kit Weight: Approx.19g / 0.7in Material: Stainless Steel Color: Blue Product Size: Approx.5 x 11 x 4mm / 0.2 x 0.4 x 0.2in (12pcs) Applicability: Fit For Tamiya Frog, For Super Blackfoot, And For Stadium Blitzer RC Car. 12 x Rubber Sealed Bearing Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store