Rhinestone Heat Transfer ( Iron on ) design. Preheat iron to cotton setting (about 320-340 degrees). Measurements 12 x 10" Place the transfer face down on a flat surface and carefully lift the backing from the design. If any stones have shifted out of place, carefully put them back into place using tweezers. Place the transfer, stone side down, onto the fabric and press into place with your hand. If it is not in the desired position, lift and reposition. (once heat bonded to fabric, you can't move the rhinestones) Place iron over the design area and apply steady pressure for 15 seconds (DO NOT MOVE IRON AROUND AS STONES MAY SHIFT) Place iron over another design area for another 15 seconds and repeat till the entire design is pressed. (Do not overheat or glue will lose its adhesion). This design has big and small stones. Make sure you keep iron on big stones long enough to make them stick. Then Set aside and allow transfer to cool. Slowly and carefully peel the clear plastic sheet away from the fabric. If stones are not sticking, replace the plastic sheet back onto the shirt and you may re-iron on the opposite side of the fabric again. 7. For best care, wash garment inside out in cold delicate cycle & hanger dry.