Yarie, a hook manufacturer in Japan, MK Hooks are specifically designed for trout fishing.
This MK Hook Sharp 727 is for spoons, with medium fine wire, and barb-less to penetrate without friction. Recommended for up to 2kg/4lb fish, with 2-4lb test mono lines. Made in Japan
Suites the best for 3g or heavier #4, 2-3g #6, 1.2-2.2g #7, 0.7-1.5g #8, 0.4g-0.8g #9.