These Micro Jigs from Spro are jigheads made from tungsten, an environmentally friendly material with a high specific gravity. This gives you a clearer contact with your lure and there is less resistance underwater so that the action of your bait is better highlighted. You have a choice of 2 colours. The sharp Gamakatsu hooks have a thin shaft and a razor sharp point to make sure you get every bite. Originally designed for trout fishing, they are also ideal for the popular ultra light fishing with small lures.