Dedicated holder for the Garmin Astro GPS with a Locking Strap Mount. Use on golf trolleys or carts. A versatile, easy to use mounting option. Ideal for awkward, irregular sized trolley frames / handles. Quality plastic design. Mount is supplied with bespoke holder designed to fit the Garmin Astro. Cradle slots directly on to the back of the device leaving all function areas free. Strap is suitable for square, oval & round handlebars, frames, poles or bar. Fits minimum diameter of 21mm & maximum diameter 40mm.