longridge magnetic club alignment trainer SupplierProjectorpoint Batteries 4x AAA size GB000656 Batteries 4x AAA size alkaline batteriesFlight distance display switch button: switches between Carry and Total flight distance display modes As well as being compatible with TGC2019 allowing you to immerse yourself in a diverse array of meticulously recreated virtual golf courses that capture the essence of iconic fairways MAGNETIC CLUB ALIGNMENT TRAINER attaches to your irons and wedges to provide a visual of your aim and positioning of the club face (open develop proper swing positioning and face control with the portable alignment aid