Materials:

• cotton yarn or floss perfect for 3mm hook (I use cotton floss by Ariadna - three treads together)
• 3mm crochet hook
• fiberfill
• yarn needle
• all you want to use for decorate tree

Abbrevations:

• mr - magic ring
• st - stitch
• sc - single crochet
• sl st - slip stitch
• inc - increase (work 2sc in one stitch)

You need to crochet two parts of your tree - top and bottom and then sew them together.