Amazon.com: YOJOB 2Pack Size G / 4mm, 7/4.5mm Crochet Hooks, Super Smooth & Ergonomic for Beginner and Advanced (4.0mm, 4.5mm)
Making ear warmer and one side is slanted unless I stretch it out. Cotton yarn 4mm crochet hook. How can I fix this? What am I doing wrong? : r/crochet
Yarn Weights and Hook Sizes [Crochet Basics] - YouTube
Amazon.com: IMZAY Crochet Beginner Kit with Crochet Hooks Yarn Set, 50g 98 Yards of Yarn Skein with 2 Ergonomic Handle Hooks(3.5mm,4mm), 20 Stitch Markers, DIY Hand Knitting Craft Art Tools for Beginner
Different hook sizes on the same yarn : r/crochet
Crochet Hook Sizes and Comparison Chart - Sarah Maker
Crochet hook for the yarn weight, secrets on how to choose