Aloft Hobbies makes picking the right blade easy. We only offer "normal" sizes and "normal" sized spinners. All of our folding props and spinners for folding props will fit one another! Just find the blades you need, then find the spinner you need. No more guessing.
Warning - If using a "Z" spinner (also known as cranked or offset hub) it is recommended that you reduce the manufacturers RPM rating of the blades to 75%. A Z spinner puts a lot of stress onto the blade hub and can lead to prop failures.