Rapid had the best price for what I was buying, though I wasn't sure at first whether the price was per item or per card (the items were packaged two-per card). Other suppiers seemed to be offering a price per item. But I was able to sort that out quite easily by sending their sales team an email. They replied the same day. I ordered three cards, which would give me six items. However they then said they only had one card in stock and shipped it with the rest to follow. This first shipment arrived very quickly and the product worked well. I used the on-line chat feature to ask, and was assured that I wouldn't have to pay two lots of delivery charges. The PDF invoice they emailed me for the first shipment showed the full delivery charge, so I await the second shipment with interest. I expect it to show free delivery. Overall, I'm impressed with their price and responsiveness. Anyone can run out of stock!