Features: brand new and high quality CNC precision machining: the bottom of the serrated thread is clean and smooth, increasing strength and accuracy. Self-tightening: Inserts can ensure that your wheels stay connected to the vehicle under the harshest conditions. High quality: Nuts and buckles are made of metal, which are light in weight, high in strength, corrosion resistant and durable. Included packaging: Contains serrated flange wheel nuts, R buckles, and for cross sleeves. Strong compatibility: for RC model car 1:10 1:12, and more remote control model for cars. Specifications: Material:Metal Color :Multicolor Size: Approx. 172x92x22mm/6.77x3.62x0.86inch Note: 1.Please allow 1-2mm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1 Set Universal R Buckle Nut Bolt