Boye 4-N-1 Crochet Hook Tool Sizes E, G, I, K

This one simple 4-in-1 tool from Boye gives you crochet hooks in sizes E, G, I, and K for convenient portability

The useful tool has 4 hooks:
Size E – 3.50 mm
Size g – 4.25 mm
Size I – 5.25 mm
Size K – 6.50 mm