Rather than rummaging through your crochet hooks for the right size, consider the Addi colour crochet hooks. Each size is colour coordinated so you don’t have to get out the bifocals to check the sizing on the hook. What a great idea!
Addi Colours Crochet Hooks
2.0mm, 2.5mm, 3.0mm, 3.25mm, 3.5mm, 3.75mm, 4.0mm, 4.5mm, 5.0mm, 5.5mm, 6.0mm