How do you use an armour set on runescape?

Answer 1

first off, you buy an armour set in the Grand Exchange or from another player. These items will be in a box when purchased.

Then with the box in your inventory, you right click the Grand Exchange Clark, and select sets.

With the screen that pops up, you click onto your inventory (with the screen still up) and right click the box and select 'exchange'.

If trying to create a box to sell then you will have all of the pieces of armour that you want to make into a set, these must include (Kiteshield, Platebody, Platelegs and Full Helm). then right click on the Grand Exchange Clark, and find the right set for you. So for example rune armour set (Sp), then right click that in the screen and select Exchange and all of the pieces of armour in your inventory will be transformed into a box with all of the pieces on, so that you can sell them all in one Grand Exchange slot.