No big deal, just a page of six stroke roll combinations and phrases, in 16th notes and 16th triplets.
I call them that under duress, it just happens to be the common name for this item— explanation for that is on this old post, which has another, very nastily-formatted page of them.
Pretty straight forward? Probably do them with a metronome, giving you quarter notes. Mind your dynamics.
I am happy to help you with any of the materials on the site, and with anything else drumming related— contact me for private lessons, online world wide, or in person in Portland, Oregon. All levels of players, and all people, are welcome.
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