Specification:Condition: Brand NewMaterial: ABSColor: Black, Red, Blue (Optional)Type: G/F disk bottom with start and stopDiameter: 2.5cm / 1.0inProduct size: (approx.) 2.5 * 2.5 * 2cm / 1.0 * 1.0 * 0.8inPackage Weight: Approx. 10gApplicable to: Universal for F chassis All Models/ G chassis series 2018Applicable models:Fits for 1 Series F20 F21 2012-2016 Fits for 2 Series F22 F23 2015 2016 Fits for 3 series F30 F31 2012-2016 Fits for 4 Series F32 F33 2014-2016 Fits for 5 series F10 F11 2011-2016 Fits for 5 series G30 2017-2018 Fits for 6 Series F12 F13 2012-2016 Fits for 7 Series F01 F02 2009-2015 Fits for X1 F48 2016 Fits for X3 F25 2011-2016 is not suitable for 2016+ Fits for X4 F26 2015 2016 Fits for X5 F15 2014-2016 is not suitable for 2016+ Fits for X6 F16 2015 2016 Package Included:1 * Start Button1 * Screwdriver1 * Clay Note:1. Please check Compatibility chart above to make sure your vehicle is listed before you purchase.2. Please allow 0.5-1 inch difference due to manual measurement. (1 inch=2.54cm)3. Due to the different display and different light, the picture may not reflect the actual color of the item. Thanks for your understanding.4. Please note that the new type and old type of the blue one will be sent randomly, and make sure you will not mind before ordering.