JACK DICE - block motel LPJack Dice is a new project from John Twells and Walkmaster Flex. John Twells, amongst very many other things, runs the Type label and has been producing music for the last 15 years. Walker is the manager for Main Attrakionz and has been DJing with them as the official "Green Ova DJ." Jack Dice is fueled by an interest in bass Twells being a car audio nerd and Walker having an obsession with '90s southern rap music.