basic cotton fat quarter.
Please message me if you would like this design (or any of my other designs) resized for a specific project. If you would like this design at kona cotton fat quarter size, you will find it here (http://www.spoonflower.com/fabric/4414001-seahorse-kona-fat-quarter-by-bippidiiboppidii)... and two seahorses on a kona fat quarter here (http://www.spoonflower.com/fabric/4414217-seahorse-pair-kona-fat-quarter-by-bippidiiboppidii).