BuyBits Metal U bolt Motorbike Bike Mount for Garmin GPSMap 64 64s 64st Metal U bolt suitable for most handlebars, oval & round. Fits diameter 16mm - 32mm. Maximum strength metal u bolt mount base Fits Garmin GPSMap 64 64s 64st Dedicated slide fit GPS cradle - fits the same way as the original holder Inclides Mount base with two sizes or u-bolt, GPS cradle, fixing tool & protective bar wraps