Picked up in local KRK asian store on Woodlands Rd, Glasgow. Cast iron kadai/kahri about size of 1/2 a football. Season as normal. Excellent for curries but it's pretty robust and would be equally at home on an open fire. It's not thin like a wok and is reassuringly heavy! Cost about £5. I'm sure you'll get them in other places. I'm also looking for a larger one in cast aluminium - if anyone knows a good source, let me know. And don't say eBay - I looked.