The design is centered so your FQ's should print properly on all widths of Spoonflower fabric - but if you want more than a yard of this you'll need to add each yard separately to your cart.
If you buy a fat quarter of this design, you'll get all four colorways, each slightly larger than a swatch (9" by 10+ inches, depending on the fabric.)
There are more four-in-one collections available here.
PLEASE NOTE: if you order more than a yard of this, the fabric top and bottom will be unprinted - it will be a one-yard print centered on a two-yard piece of fabric. If you want multiple yards of this, add one yard to your cart and then increase the quantity to two or more.