This is a free written pattern, written in U.S. terms, meant to fit gaming chairs specifically or chairs with hard, thin armrests.
This Armrest Cover fits armrests up to 11x3 inches, but can be made larger easily by a confident crocheter.

This pattern uses wt6 Super Bulky Yarn and a 7mm crochet hook.
The gauge for a 2x2 inch square is 5 stitches across by 3 rows tall.

You will need:
1-2 Yards of Wt6 Super Bulky Yarn (I used Big Twist Plush)
7mm crochet hook
Scissors
Darning Needle (optional)

This pattern is free and only available on Ravelry. Do not pay for this pattern or obtain it from any other site!