Round Cork Coaster Set 16 PC Betus Oakridge Cork Coaster Round Set of 4 The Brand Makers Round Cork Coasters at 10 piece Cork Coasters in Bhiwandi ID Round cork glass coaster MINARA with holder, 6 pieces, natural, 3.5 Wood Natural Round Cork Coasters (set of 4), For Home Office Hotel. This set of four round coasters is crafted from natural cork, offering a sturdy and lightweight design. Each coaster features a slightly raised edge, forming a shallow well for secure placement of items.