FITMENT: A-AM bushing for ski-doo pedition 550F; GSX 380F/500SS/550F/600/800/380F/500SS; GTX 550F/600/800; Mach Z/Z 1000/Z X 1000（the specific sub-model, please refer to the picture） FITMENT: A AM bushing set for ski doo MXZ 1000/380/500SS/550/550F/600/800/800R/X 440/X 550/X 600/X 800; MXZ XRS 600/800; Summit 1000/550/550F/600/800/800R/X 800R/XRS 800R（the specific sub-model, please refer to the picture） PACKGE & OEM : 16 x A-Arm Bushing (505070566 ) MATERIAL: The material of the bushing is brass, which is more durable in low-temperature and humid environments and enhances the suspension performance of the vehicle SERVICES: Before purchase please verify your vehicle model,For more infomation, contact us anytime - 24/7 support available,Our product comes with a 12-month warranty for premium after-sales service 16 x A-Arm Bushing (505070566 )