Finished Measurements
Circumference 18cm/ 7,09 inches, length 18cm/ 7,09 inches.

Yarn
280 m/100 gr, 25% wool, 75% acrylic
Sample shown in dark gray and purple.

Gauge
25 stitches and 32 rows stockinette with needlesize 2.75 mm =10x10cm

Needles
Size to get gauge (I used double pointed needles 2.75 mm/ U.S. 2 needles)

There are video tutorial in this pattern.