These anti slip coasters are made from silicone rubber;It has excellent grip qualities;They are also dish washer safe and non toxic;Prevents cups, mugs, bowls and crockery from sliding on tables, counters and trays;Holds objects firm on surfaces that are not horizontal or are subject to motion or tipping

• Tenura Silicone Rubber Non Slip Coaster 9cm Length x 9cm Width Blue Pack of 4

Tenura Silicone Rubber Non Slip Coaster 9cm Length x 9cm Width Blue Pack of 4Tenura