The Marker Mags allow the golfer to place and pick up their golf ball marker without having to bend or stoop! The Marker Mag is placed on the bottom of the putter head, out towards the toe end. The Marker mag is about the size of a dime but 1/2 as thick and it weights virtually nothing! The Marker Mag compliments our 3-finger ‘Upright Claw’ and the 1″ diameter ball marker.