Crochet Hook Conversion Chart - metric, US letter and number and UK old sizes
Clover ::Amour Crochet Hook:: F US / 3.75 mm / 5.5 in / 14 cm | eBay
Amazon.com: Mdoker Size F/(3.5mm) Crochet Hook,Extra Long Crochet Hooks for Arthritic Hands,Ergonomic Grip Soft Handles for Beginners and Experiecced Crochet Lover,Comfortable/Easy to Use
Crochet Hook Conversion Chart Metric vs US - That Yarn Place
Crochet Hook Sizes & Conversion Chart - Heart Hook Home