Printed circuit:

• made of FR 4  9,8 x 24,8 x approx. 0,5 mm/
  0.39 x 0.98 x approx. 0.02 inch
  
• Cu-lamination 35/35µm tin-coated
• plated-through, solder resist
• milles

Foil pushbutton:

• made of polyester, fine-grained
• 10 x 25 mm/ 0.39 x 0.98 inch
• 1 -colour printing on the rear side
  (no screen printing)
• not embossed
• 1 piece gilded snap dome
  8 mm/ 0.31 inch