Not sure on the “rock” part of the title apart from the fact that the movie is one of my favorites.
Rolla or foam roller- that I purchased today is one that has been recommended by my osteo – not sure if I know how to use it yet or whether the discomfort is something that’s good or bad. This one is 90cm x 15 cm diameter:
An easy 3.2k this morning and a 5k planned tomorrow. Message to Andrew; I’ve reverted to the k per minute format!