The required materials and tools:
1. DK weight yarn, I used:
- Alize Baby Best (90% acrylic/10% bamboo, 100g/240m) light green (41), coral (170), turquoise (287), powder (382) and pearl (450) colors

1. 2.5 mm crochet hook
2. Buttons (4 pcs – D=17 mm)
3. Pillow Insert or fiberfill
4. Scissors
5. Tapestry needle

Abbreviations (US):
Ch - chain
Sc – single crochet

The finished pillowcase using the materials stated in this pattern is ~10.6 inches / 27 cm in height and ~10.6 inches / 27 cm in width.