Prym wool crochet hook Ergonomics

The colored prym.ergonomics wool crochet hooks are made of special, high-quality plastics and are therefore available in sizes from 3.00 mm to 15.0 mm. They ensure easy, joint-friendly crocheting, are very lightweight, and feel pleasantly warm in the hand. The highly polished shaft guarantees extremely smooth gliding of the stitches, while the ergonomic shape of the non-slip plastic handle ensures comfortable and fatigue-free working. The brightly colored handle indicates the needle size, making it easy to find the desired crochet hook in your craft basket. The prym.ergonomics wool crochet hooks won the Red Dot Design Award when the thicker sizes were launched in 2014. Source: Prym Consumer Europe GmbH, https://www.prym.com

Picture is a prime example.