This coaster is designed with granny circle and pompom edging.
Pattern instructions include to make the circle bigger. (Just in case you might want to make matching placemats or etc.)

Level: advanced beginner
US terms

Documents includes
-4 pages of pattern
-some pictures and link to demonstration video
-Diagram

Materials
5.0mm (US H/8) crochet hook
No4, medium, worsted yarn 28 yard/26 meter

The coasters pictured is made using Lily Sugar’n Cream (4-ply, worsted,100% cotton)

Gauge
12 sts / 6 rows square in double crochet
10 cm x 10 cm (4 x 4 inch)

Finished size
approximately, 12cm/5inch circle