If you are a professional and apply designs to your merch and the clothes you sell to other people, not every mini heat press machine will be a good option for you, especially not those cheap versions that will stitch the design. Professionals need a better quality machine that keeps the design in place for longer. Whether miniaturisation is a requirement for professional application is an other question, but the mini heat press machines mentioned on this article are designed more for recreational use and not professional use.