The coaster is designed with two colours but it could also be made in one colour. The finished piece is 3” across using the listed yarn. Use a different yarn and suitable hook and you will have a bigger or smaller coaster. Since you only need a total of about 15m of yarn, 10 m in colour 1 and 5 m in colour 2, this is a great stash buster. It works up very quickly and is a great gift.