How is it called...

[Iraklis F.C.]

ok chaps a little help needed , how is it called the thing you put under glasses so as not to damage desks , especially when serving chilled drinks in summer cause of condensation

thanks in advance

 

[Iraklis F.C.]

yes its coaster , cheers

 

[Iraklis F.C.]

I feel this thread may not be serious

why , i couldnt find the word for this item