Any marker will do: Regular pen, ballpoints, and whiteboard markers are best to use.
Yes, you can.
Yes, you can.
Yes, you can.
No. You cannot put double-walled glass, nor items with steel in the microwave oven.
Our porcelain items without cork: yes, you can. (Including the Nicola range).
Our porcelain items with cork: hand-wash foamy bath only.
Our glass items without double wall: yes.
When it is double walled hand-wash foamy bath only.
All lids in wood and cork cannot go into the dishwasher: Damped cloth cleaning only.