3 sheets 12 in x 16 in (30.5 cm x 40.6 cm) Protects your heat press & project for long-lasting performance & flawless transfers Heat-resistant PTFE sheets - compare to Teflon*. Thin, flexible design contours to your project. Easy to clean. Tear resistant but can be cut to size if desired Waterproof & oil resistant. Heat resistant up to 500 degrees/260 degrees C for continuous working temperature & 608 degrees F/320 degrees C for short temperature exposures