Heat transfer paper. See link. How many papers in sra3? https: www.youtube.com watch?v=Y36dsEo2ksw&feature=share&fbclid=IwAR0ZcEs6FcioDkHlv-MgfNwkoUs5PrTLeTngZ7xK86y5u-QpqCSdwzpBQaQhttps: www.youtube.com watch?v=isdW8EZ6LlU&feature=share&fbclid=IwAR3PHiMdzYIM6hWKjwkJ-jH7ZJmQ5NTl0zxo0CuUdUEYIw20eXRtmcS-gS0