Make sure you get the extra firm rumble roller.
i spoke to a therapist and they told me it's best to have all 3 rollers
a foam roller to start off with, then work your way up to the blue rumble roller then use the black rumble roller.
or you can use 2 at a time on places like your back so your weight is evenly distributed (less painful), and work your way up to using one on it's own, etc.
Last batch of lacrosse balls I brought where terrible, just ridiculously soft
these are from america, did you buy from UK?
the ones im getting are from the top seller on amazon, and are NCAA and NFHS approved whatever that means, but it must mean they are legit.
Pfft... I was gonna pay you 50p for one!
the padded envelope would cost me that much, never mind the £3 for second class postage.
like i say, it's honestly not worth my time or the hassle of it all. far better to just buy yourself off ebay.