APPROX- 11 inch on longest side Plastisol Ink Screen Print Transfer Pre-press garment for 10 seconds Temp: 325-350 Time: 10-20Seconds Pressure: HEAVY Peel: Hot Peel This is not a shirt, just a transfer. You must use a heat press, a house iron or easy press will not work.  You can use any mockup in your group or on your business page to help sell your shirts or to gauge interest.  I am not responsible for operator error. Every press is different. If you are new or apprehensive, I recommend ordering a couple extra transfers.