Size References *(Sheet size measurements NOT shirt size)*XL- 12” (recommended size for rugs, signs, etc)Large - Approx. 10” (preferred size to have a good design cover on all adult shirts. Definitely recommeded for use for XL adult and up)Medium - Approx. 8.5” (Recommended for Youth Large up to Adult Medium. Not recommend using on shirt larger than Adult Medium.)Small- Approx. 7” (Recommended for 2T - youth Large shirt sizes)XS-Approx. 4.5-5” (Recommended for infant onesie, baby tees, towels, etc)MugsHOW TO USE Sublimation Heat Transfers:You