ITEM NAME:2Pcs M1 5mm 11T Pinion Motor Gear for 1/8 RC Car Brushed Brushless Motor R7R9 2Pcs M1 5mm 11T Pinion Motor Gear for 1/8 RC Car Brushed Brushless Motor R7R9 For 1/8 RC car Hard anodized on the gear surface Rust-proof treatment on the surface of gears The gears are milled by precisely Tanwai milling machine A M4 set screw (12.9 level) has been added to each pinion gear Teeth:11T;Height:14mm/0.55 inch ;Tip diameter: 13mm/0.51 inch Suitable shaft diameter: 5mm/0.20 inch 1 set: 2Pcs colour:black packing include:2 * M1 5mm Pinion Motor Gear 1 pair*Machine screws Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm..1 set: 2Pcs. A M4 set screw (12.9 level) has been added to each pinion gear. For 1/8 RC car. Hard anodized on the gear surface. The gears are milled by precisely Tanwai milling machine.