00 sheets of 8 1/2" x 14" Spirit Thermal Paper per box. Thermal paper works with any normal thermal/stencil copy/fax machine. Consists of four layers per sheet.

Specifications:

• Layer 1: Top layer is where image will be transfered onto
  
• Layer 2: Second layer is disposed
  
• Layer 3: Carbon paper. The pressure on this layer is transferred to the top layer
  
• Layer 4: Bottom yellow sheet holds the original image in place during use in the stencil copy machine
  Genuine Spirit Thermal Paper made in the USA