This fabric listing is by Timeless Treasures entitled "White Polka Dots", on black that is 42" x 54" - a yard & 1/2.  This is vintage material I have just discovered in the attic from the 50s and 60s.  It was stored in a secure plastic tub in a non-smoking environment.  

This is new fabric, never washed, 100% cotton.  I am selling this 1/2 yard for $2.95 with flat shipping via first class USPS of $4.25.  I combine shipping on multiple orders.