1Quality aluminum alloy material, high strength, firm, durable and anti-rust, safe to use. 2Original standard, stylish styling, the helmet lock will not affect motorcycle overall appearance. 3Various colors for you to choose, it can satisfy different preference. 4Covenient to store your helmet, and effectively avoid your helmet of being stolen. 5Practical accessory fits for Ninja 650/Z 650 Condition: 100% Brand NewItem Type: Helmet LockMaterial: Aluminium Alloy Optional Color: Black, Red, Orange, Yellow, Green, BlueBottom Mounting Bracket Size: Approx. 160 x 62mm/6.3 x 2.4inScrew Hole: Approx. 9mm/0.4inCenter Distance of Two Screw Holes: Approx. 80mm/3.1inHorizontal Helmet Lock Size: Approx. 62 x 22 x 40mm/2.4 x 0.9 x 1.6inLock Pillar: Approx. 6mm/0.2in (Thickened, the silver part)Fitment: Fits for Ninja 650 2017+Fits for Z 650 2017+ 1 x Helmet Lock2 x Key Professional installation is strongly recommended