Just do a google search crochet hook sizes mine came up with

First time seeing a 1mm crochet hook… idk what I was expecting but

Gauge Calculator for Knitters and Crocheters - Easy to Use Crochet stitches for beginners, Beginner crochet tutorial, Knitting tutorial

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Crochet Hook Sizes Crochet hooks, Knitting needle size chart

Market Tote Bag

Buy Tulip Mind Giant Crochet Hook Assorted Sizes Online in India

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crochet Archives - Page 2 of 25 - Zeens and Roger