Buy RS3 Wergali incense sticks
Wergali incense sticks are a Firemaking item in RuneScape 3 that help players train Fletching. When you light one, each potency level gives a 0.5% chance to string a bow on its own while fletching logs into unstrung bows. It also gives the same chance to add feathers to arrow shafts. At the top potency level of 4, the chance is 2%. The effect does not need any extra ingredients.
Each stick you burn lasts ten minutes. Potency starts at level 1 and goes up by one level every ten minutes, up to level 4. You can also use the overload option, which burns six sticks at once and jumps straight to level 4. If you keep lighting more sticks, the effect can stay active as long as you want, and it does not go away when you die.
You need level 41 Firemaking to make and use these sticks. They are made by adding a clean wergali herb to accursed maple incense sticks. Wergali incense sticks are members only, tradeable, and stackable, and they weigh nothing, so they are easy to carry on long Fletching sessions.