... convenient, no tools are required, just hands to press on.3. Reduce in the daily life of friction ... the Iphone cover) size processing good pictures, print (heat transfer paper and ink)Step 3: put the picture ... 4:setup time and temperature, put it into the heat transfer machine, startStep 5:when the alarm ring , ... the aluminium sheet with double faced adhesive tape heat press for iphone 4S cell phone