Vanfook, a hook manufacturer in Japan, Expert Hooks are specifically designed for trout fishing.
This SP-41F is for spoons, with medium heavy wire to be used at trout ponds, lakes and etc. Surface is coated by PTFE to remove friction in hooking. Barbless hook to penetrate fast. Recommended for up to 1.5kg/3lb fish, with 3-6lb test mono lines. Matches well to spoons of 2.2g-3.5g #6, 4-5g #4, 5g-10g #2. Made in Japan