Features: 3.RC parts kit applicable brand: Replacement for HSP4.RC car pull starter applicable models: Replacement for HSP RC 1:10,1:85.Stable structure, exquisite and , it is a great spare part for your model car. Low working noise, not easy to aging and wear-resistant.6.Hex nut one way bearing applicable models: Replacement for HSP RC1:10 all models.Note: Please pull the pull starter gently, and add some wax to the string for durability, otherwise it is easy to break.Specifications:Material: Aluminum alloyColor: Black & SilverBrand name: BQLZRSize:RC Car Pull Starter:Hole pitch: 27 mm / 1.06 inchDiameter across sides: 12 mm / 0.47 inchHex nut one way bearing: 12 x 11 mm / 0.47 x 0.43 inch (DiaxH)Hole diameter: 6 mm / 0.24 inchWeight: 44 gPackage include:1 x RC Car Pull Starter1 x Hex Nut One Way Bearing4 x Screw