Price seemed reasonable and postage was clearly stated to be free so I purchased with one click. I then discovered that delivery was charged at £8.95 (for an item that weighs about 2 ounces). I could find no option for changing to free delivery as is sometimes possible with Amazon, so cancelled right away. On the face of it the delivery charge seems to be a complete rip off. I then went to ebay, where I purchased a packet of 5 for £3.55 + .30p postage from Beaky Trading. They arrived 36 hours later and fulfilled their intended function perfectly.