Si thinks he's found one of best forms of stress relief in the world!
Si reckons that he has found one of the best forms of stress relief out there! Apparantly when rolled across your body these spikey foot balls feel amazing.
When Si first described them to the team, he used words such as 'heaven' and 'bliss'.
"Put them under your desk at work and you would have a smile a mile wide all day." Si adds.
Have you ever used these balls before?