Abstract: Devices, apparatus, and methods of storing and releasing a ball marker from the bottom of a head of the golf club, such as a putter. A compartment in the bottom of the golf club head has a side opening adjacent to the rear of the golf club head for allowing a disc shaped ball marker to be slid into the compartment, and sliding the marker in reverse allows the marker to be slid out of and removed from the compartment. A magnet can also be used. Also, the compartment can have grooved side walls that act as tracks to allow the marker to be slid into and out of the compartment. A removable top disc and front plate on the golf club head allows for advertising indicia and logos to be placed on the head of the golf club.