As promised, here's a review of the PulseBall. I will be ordering some of these for the clinic; but if you're not local, or you can't wait to get hold of one, the code OLTON10 will get you a discount on their website. There's also a vibrating roller that I haven't tried yet.
*Full disclosure: this is an affiliate code, and I get a commission. It's not suitable for all conditions, so if you have an injury then get that checked out first and ask your practitioner. My clients are (of course) welcome to come and try it out and chat to me first to see whether it's right for you!