Do you hate losing track when you are counting your stitches? 
 
Does it drive you crazy when friends and loved ones say something in the midst of a complicated row?  Here's the answer - a helpful indicator to tell them when you are counting:  red side up means "Give me a moment. I am counting." green side up means "It's ok to talk. I am not counting"
 
This coaster is 4" in diameter. They are printed on premium paper. The paper is somewhat glossy. For best results, these coasters are not intended for use with beverages.