Materials:

Yarnart Jeans (✓2, yarn density 50g/160m/174yds; 45% acrylic, 55% cotton), color:

white

black 

dark grey

2 mm crochet hook (US: 1/B, UK: 14)

Stuffing

Product Sizing:

Finished size 6 cm (2,4 in) 

You can use any other yarn, but keep in mind that this will affect the size of the finished product.