Physical Company Prickle Stimulating Balls

I haven't used the prickle balls yet, so can't comment on their quality. I was shocked, however, by the price of £9.50 for postage, which was made worse by a long wait for the delivery & the fact that they were very poorly packaged, in a small plastic bag. How can you justify such a high price for delivery?

I use it most days to help my feet as I have nerve damage due to chemotherapy and this helps a little. Do pilates every week and we always use these balls then.