This is part 2 of the rudiment lessons "Rudiments Part 2" which includes over 11+mins on; Closed & Open Rolls. Learning the difference between a closed and open roll will set you up for cleaner and more accurate fills as well a huge variety of sticking patterns for fill ideas around the kit. In combining all the rudiment ideas with the last 2 videos you now have a huge selection of sticking patterns to come up with your own fill ideas to place around the kit.