Buy OSRS Expeditious bracelet
The Expeditious bracelet is a members item in Old School RuneScape that helps you finish Slayer tasks faster. It was released on 2 February 2017. When you wear it, each monster you kill has a 25% chance to count as two kills toward your Slayer task. You get no extra experience from the bonus kill, so it is best for tasks you want done quickly.
You only need to wear the bracelet when the monster dies. You can wear Barrows gloves for most of the fight and swap at the end.
All Expeditious bracelets share one pool of 30 charges. A charge is used each time the effect works. When the last charge is used, the worn bracelet disappears and the charges reset to 30. A simple rule is one bracelet for every 150 kills on your task. The elite Combat Achievements rewards add a 10% chance for the bracelet to regenerate instead of disappearing.
The bracelet is an opal bracelet enchanted with the Level 1 Enchant spell. It has a base value of 1,150 coins and a high alch value of 690 coins. It is a common pick for Dust devils, Jellies, Waterfiends and Fossil Island wyverns.