it is not  a physical item! it is a digital PDF file. On English language only. 

You need 2 mm hook and 100% cotton yarn skein of 50grams/330m or 1,76 Oz/360yards (for example I used Seam Anna20) or 1,5mm hook and one cotton skein of 50g/280m or 1,76Oz/305 yards (for example Miss Alize cotton or Yarn Art Violet)

Only 1 skein of  yarn is needed for an adult cap having measurements of the head 21-22         inches (55-58cm) in circumference and the 5-6 inches (15-16 cm) long.