The super stroke legacy ultra slim 10 putter grip is the smallest grip made by super stroke and is approved by the usga it has a patented parallel design which helps even out pressure across both hands decreasing tension and freeing up your swing the grip is easy to slip on and features rubber underlisting and crosstraction technology that enhances feel and tackiness it is made using new high tech polyurethane material has a core size of 15cm 058 and weighs 65g 23oz