The size is clearly engraved on the handle of each hook,and the handles are also color coded. This makes it easy to choose the right hook at a glance without thinking. The brightly colored crochet hook grip isn't just practical, but it's fun too. The crochet hooks ergonomic design makes it fit the hand perfectly. They are easy to grip,and very comfortable to use even for long periods of time.*********** What Makes this Crochet Hook Different?********** This is a premium quality crochet hooks set made from the highest quality aluminum and brightly colored molded ergonomic handles. The whole set comes in a transparent case and all of the crochet hooks are color coded and easy to identify. A sharp crochet hook will make crocheting much easier and more enjoyable. These ergonomic crochet hooks can be used for hours without any discomfort thanks to the hand friendly design.