The required materials and tools:
1. DK weight yarn, I used:
- Alize Baby Best (90% acrylic/10% bamboo, 100g/240m) light blue (183), lavender (349), powder (382), carrot (408), pearl (450), turquoise (287), yellow (216) and orange (336) 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
Sl st – slip stitch
Dc – double crochet

The finished pillowcase using the materials stated in this pattern is ~9.8 inches / 25 cm in height and ~11 inches / 28 cm in width.