Prestige 18cm. Multisteamer Half Price £25 at Amazon
These are great-we have one - spuds in the bottom and then add the veg to the other two-and use only one ring on the cooker-tastes great too.
Prestige 18-centimetre, 2.8-litre multi-steamer
Quality 18/10 stainless steel for durability and style
Friction bonded stainless steel base with an aluminium core for perfect heat distribution
Durable stainless steel handles, heat-toughened glass lid
Oven safe to 180 degrees C/350 degrees F/Gas Mark 4